<h1>Helmberger, Donald V.</h1>
<h2>Combined from <a href="https://authors.library.caltech.edu">CaltechAUTHORS</a></h2>
<ul>
<li>Jia, Zhe and Zhan, Zhongwen, el al. (2022) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20220503-182318528">Bayesian differential moment tensor inversion: theory and application to the North Korea nuclear tests</a>; Geophysical Journal International; Vol. 229; No. 3; 2034-2046; <a href="https://doi.org/10.1093/gji/ggac053">10.1093/gji/ggac053</a></li>
<li>Lai, Voon Hui and Helmberger, Don V., el al. (2022) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20220309-676533000">Strong ULVZ and Slab Interaction at the Northeastern Edge of the Pacific LLSVP Favors Plume Generation</a>; Geochemistry, Geophysics, Geosystems; Vol. 23; No. 2; Art. No. e2021GC010020; <a href="https://doi.org/10.1029/2021gc010020">10.1029/2021gc010020</a></li>
<li>Lai, Voon Hui and Graves, Robert W., el al. (2020) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20200930-144714950">Shallow Basin Structure and Attenuation Are Key to Predicting Long Shaking Duration in Los Angeles Basin</a>; Journal of Geophysical Research. Solid Earth; Vol. 125; No. 10; Art. No. e2020JB019663; <a href="https://doi.org/10.1029/2020jb019663">10.1029/2020jb019663</a></li>
<li>Yu, Chunquan and Hauksson, Egill, el al. (2019) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20190702-074604162">Depth Determination of the 2010 El Mayor‐Cucapah Earthquake Sequence (M≥4.0)</a>; Journal of Geophysical Research. Solid Earth; Vol. 124; No. 7; 6801-6814; <a href="https://doi.org/10.1029/2018jb016982">10.1029/2018jb016982</a></li>
<li>Yu, Chunquan and Zhan, Zhongwen, el al. (2019) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20190508-082435371">Determining Moho Depth beneath Sedimentary Basins Using Regional Pn Multiples</a>; Bulletin of the Seismological Society of America; Vol. 109; No. 3; 1171-1179; <a href="https://doi.org/10.1785/0120180325">10.1785/0120180325</a></li>
<li>Sun, D. and Helmberger, D., el al. (2019) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20190215-152553385">Slab Control on the Northeastern Edge of the Mid-Pacific LLSVP near Hawaii</a>; Geophysical Research Letters; Vol. 46; No. 6; 3142-3152; <a href="https://doi.org/10.1029/2018GL081130">10.1029/2018GL081130</a></li>
<li>Wei, Shengji and Chen, Meng, el al. (2018) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180314-105805436">The 2015 Gorkha (Nepal) earthquake sequence: I. Source modeling and deterministic 3D ground shaking</a>; Tectonophysics; Vol. 722; 447-461; <a href="https://doi.org/10.1016/j.tecto.2017.11.024">10.1016/j.tecto.2017.11.024</a></li>
<li>Ko, Justin Yen-Ting and Helmberger, Don V., el al. (2017) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20171002-081952835">Lower-mantle Substructure Embedded in the Farallon Plate: The Hess Conjugate</a>; Geophysical Research Letters; Vol. 44; No. 20; 10216-10225; <a href="https://doi.org/10.1002/2017GL075032">10.1002/2017GL075032</a></li>
<li>Chu, Risheng and Ko, Justin Yen-Ting, el al. (2017) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20170317-142305531">Lithospheric radial anisotropy beneath the Gulf of Mexico</a>; Earth and Planetary Science Letters; Vol. 466; 43-52; <a href="https://doi.org/10.1016/j.epsl.2017.02.040">10.1016/j.epsl.2017.02.040</a></li>
<li>Lai, Voon Hui and Graves, Robert W., el al. (2017) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20170303-085007254">Evidence for strong lateral seismic velocity variation in the lower crust and upper mantle beneath the California margin</a>; Earth and Planetary Science Letters; Vol. 463; 202-211; <a href="https://doi.org/10.1016/j.epsl.2017.02.002">10.1016/j.epsl.2017.02.002</a></li>
<li>Sun, Daoyuan and Gurnis, Michael, el al. (2017) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20170329-090559845">A dipping, thick segment of the Farallon Slab beneath Central US</a>; Journal of Geophysical Research. Solid Earth; Vol. 122; No. 4; 2911-2928; <a href="https://doi.org/10.1002/2016JB013915">10.1002/2016JB013915</a></li>
<li>Lui, Semechah K. Y. and Helmberger, Don, el al. (2016) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20161202-145512241">Rapid Assessment of Earthquake Source Characteristics</a>; Bulletin of the Seismological Society of America; Vol. 106; No. 6; 2490-2499; <a href="https://doi.org/10.1785/0120160112">10.1785/0120160112</a></li>
<li>Sun, Daoyuan and Helmberger, Don, el al. (2016) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20160623-120036564">Major disruption of D″ beneath Alaska</a>; Journal of Geophysical Research: Solid Earth; Vol. 121; No. 5; 3534-3556; <a href="https://doi.org/10.1002/2015JB012534">10.1002/2015JB012534</a></li>
<li>Huang, Yihe and Ampuero, Jean-Paul, el al. (2016) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20160114-114621459">The potential for supershear earthquakes in damaged fault zones – theory and observations</a>; Earth and Planetary Science Letters; Vol. 433; 109-115; <a href="https://doi.org/10.1016/j.epsl.2015.10.046">10.1016/j.epsl.2015.10.046</a></li>
<li>Lui, Semechah K. Y. and Helmberger, Don, el al. (2015) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20150515-093906670">Interrogation of the Megathrust Zone in the Tohoku-Oki Seismic Region by Waveform Complexity: Intraslab Earthquake Rupture and Reactivation of Subducted Normal Faults</a>; Pure and Applied Geophysics; Vol. 172; No. 12; 3425-3437; <a href="https://doi.org/10.1007/s00024-015-1042-9">10.1007/s00024-015-1042-9</a></li>
<li>Wei, Shengji and Avouac, Jean-Philippe, el al. (2015) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20150429-104726958">The 2012 Brawley swarm triggered by injection-induced aseismic slip</a>; Earth and Planetary Science Letters; Vol. 422; 115-125; <a href="https://doi.org/10.1016/j.epsl.2015.03.054">10.1016/j.epsl.2015.03.054</a></li>
<li>Wei, Shengji and Barbot, Sylvain, el al. (2015) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20150417-120038001">The 2014 M_w 6.1 South Napa Earthquake: A Unilateral Rupture with Shallow Asperity and Rapid Afterslip</a>; Seismological Research Letters; Vol. 86; No. 2A; 344-354; <a href="https://doi.org/10.1785/0220140249">10.1785/0220140249</a></li>
<li>Chu, Risheng and Helmberger, Don, el al. (2014) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20141002-102959367">Upper mantle surprises derived from the recent Virginia earthquake waveform data</a>; Earth and Planetary Science Letters; Vol. 402; 167-175; <a href="https://doi.org/10.1016/j.epsl.2012.10.023">10.1016/j.epsl.2012.10.023</a></li>
<li>Li, Dunzhu and Sun, Daoyuan, el al. (2014) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20170616-103818655">Notes on the variability of reflected inner core phases</a>; Earthquake Science; Vol. 27; No. 4; 441-468; <a href="https://doi.org/10.1007/s11589-014-0093-9">10.1007/s11589-014-0093-9</a></li>
<li>Zhan, Zhongwen and Helmberger, Donald V., el al. (2014) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140815-120059262">Supershear rupture in a M_w 6.7 aftershock of the 2013 Sea of Okhotsk earthquake</a>; Science; Vol. 345; No. 6193; 204-207; <a href="https://doi.org/10.1126/science.1252717">10.1126/science.1252717</a></li>
<li>Chu, Risheng and Ni, Sidao, el al. (2014) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140912-081609308">Inversion of Source Parameters for Moderate Earthquakes Using Short-Period Teleseismic P Waves</a>; Pure and Applied Geophysics; Vol. 171; No. 7; 1329-1341; <a href="https://doi.org/10.1007/s00024-013-0719-1">10.1007/s00024-013-0719-1</a></li>
<li>Zhan, Zhongwen and Helmberger, Donald V., el al. (2014) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140725-091021610">Imaging subducted slab structure beneath the Sea of Okhotsk with teleseismic waveforms</a>; Physics of the Earth and Planetary Interiors; Vol. 232; 30-35; <a href="https://doi.org/10.1016/j.pepi.2014.03.008">10.1016/j.pepi.2014.03.008</a></li>
<li>Li, Dunzhu and Helmberger, Don, el al. (2014) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140602-124952161">Global synthetic seismograms using a 2-D finite-difference method</a>; Geophysical Journal International; Vol. 197; No. 2; 1166-1183; <a href="https://doi.org/10.1093/gji/ggu050">10.1093/gji/ggu050</a></li>
<li>Avouac, Jean-Philippe and Ayoub, François, el al. (2014) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140509-070750779">The 2013, Mw 7.7 Balochistan earthquake, energetic strike-slip reactivation of a thrust fault</a>; Earth and Planetary Science Letters; Vol. 391; 128-134; <a href="https://doi.org/10.1016/j.epsl.2014.01.036">10.1016/j.epsl.2014.01.036</a></li>
<li>Huang, Yihe and Ampuero, Jean-Paul, el al. (2014) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140724-145401306">Earthquake ruptures modulated by waves in damaged fault zones</a>; Journal of Geophysical Research. Solid Earth; Vol. 119; No. 4; 3133-3154; <a href="https://doi.org/10.1002/2013JB010724">10.1002/2013JB010724</a></li>
<li>Chu, Risheng and Helmberger, Don (2014) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140630-092950643">Lithospheric waveguide beneath the Midwestern United States; massive low-velocity zone in the lower crust</a>; Geochemistry, Geophysics, Geosystems; Vol. 15; No. 4; 1348-1362; <a href="https://doi.org/10.1002/2013GC004914">10.1002/2013GC004914</a></li>
<li>Zhan, Zhongwen and Tsai, Victor C., el al. (2014) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140403-102823691">Ambient noise correlation on the Amery Ice Shelf, East Antarctica</a>; Geophysical Journal International; Vol. 196; No. 3; 1796-1802; <a href="https://doi.org/10.1093/gji/ggt488">10.1093/gji/ggt488</a></li>
<li>Zhan, Zhongwen and Kanamori, Hiroo, el al. (2014) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140313-091602304">Rupture complexity of the 1994 Bolivia and 2013 Sea of Okhotsk deep earthquakes</a>; Earth and Planetary Science Letters; Vol. 385; 89-96; <a href="https://doi.org/10.1016/j.epsl.2013.10.028">10.1016/j.epsl.2013.10.028</a></li>
<li>Chu, Risheng and Leng, Wei, el al. (2013) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20131203-111223741">Hidden hotspot track beneath the eastern United States</a>; Nature Geoscience; Vol. 6; No. 11; 963-966; <a href="https://doi.org/10.1038/NGEO1949">10.1038/NGEO1949</a></li>
<li>Wei, Shengji and Helmberger, Don, el al. (2013) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20131121-092052360">Rupture complexity of the M_w 8.3 Sea of Okhotsk Earthquake: Rapid triggering of complementary earthquakes?</a>; Geophysical Research Letters; Vol. 40; No. 19; 5034-5039; <a href="https://doi.org/10.1002/grl.50977">10.1002/grl.50977</a></li>
<li>Wei, Shengji and Helmberger, Don, el al. (2013) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20131104-111155904">Modeling the 2012 Wharton basin earthquakes off-Sumatra: Complete lithospheric failure</a>; Journal of Geophysical Research. Solid Earth; Vol. 118; No. 7; 3592-3609; <a href="https://doi.org/10.1002/jgrb.50267">10.1002/jgrb.50267</a></li>
<li>Chu, Risheng and Helmberger, Don V. (2013) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130429-100412759">Source Parameters of the Shallow 2012 Brawley Earthquake, Imperial Valley</a>; Bulletin of the Seismological Society of America; Vol. 103; No. 2A; 1141-1147; <a href="https://doi.org/10.1785/0120120324">10.1785/0120120324</a></li>
<li>Wei, Shengji and Helmberger, Don, el al. (2013) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20131205-145703895">Complementary slip distributions of the largest earthquakes in the 2012 Brawley swarm, Imperial Valley, California</a>; Geophysical Research Letters; Vol. 40; No. 5; 847-852; <a href="https://doi.org/10.1002/grl.50259">10.1002/grl.50259</a></li>
<li>Sun, Daoyuan and Helmberger, Don V., el al. (2013) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130318-110208034">Rolling hills on the core–mantle boundary</a>; Earth and Planetary Science Letters; Vol. 361; 333-342; <a href="https://doi.org/10.1016/j.epsl.2012.10.027">10.1016/j.epsl.2012.10.027</a></li>
<li>Zheng, Yong and Ni, Sidao, el al. (2013) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130211-160850074">Magnitude and rupture duration from high frequency teleseismic P wave with projected landweber deconvolution</a>; Science China Earth Sciences; Vol. 56; No. 1; 13-21; <a href="https://doi.org/10.1007/s11430-012-4557-2">10.1007/s11430-012-4557-2</a></li>
<li>Zhan, Zhongwen and Helmberger, Don, el al. (2012) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121214-153612362">Anomalously steep dips of earthquakes in the 2011 Tohoku-Oki source region and possible explanations</a>; Earth and Planetary Science Letters; Vol. 353-35; 121-133; <a href="https://doi.org/10.1016/j.epsl.2012.07.038">10.1016/j.epsl.2012.07.038</a></li>
<li>Dougherty, Sara L. and Clayton, Robert W., el al. (2012) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121005-155032242">Seismic structure in central Mexico: Implications for fragmentation of the subducted Cocos plate</a>; Journal of Geophysical Research B; Vol. 117; Art. No. B09316; <a href="https://doi.org/10.1029/2012JB009528">10.1029/2012JB009528</a></li>
<li>Wei, Shengji and Graves, Robert, el al. (2012) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20120827-114719257">Sources of shaking and flooding during the Tohoku-Oki earthquake: A mixture of rupture styles</a>; Earth and Planetary Science Letters; Vol. 333-334; 91-100; <a href="https://doi.org/10.1016/j.epsl.2012.04.006">10.1016/j.epsl.2012.04.006</a></li>
<li>Wei, Shengji and Zhan, Zhongwen, el al. (2012) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20120516-093035734">Locating earthquakes with surface waves and centroid moment tensor estimation</a>; Journal of Geophysical Research B; Vol. 117; Art. No. B04309; <a href="https://doi.org/10.1029/2011JB008501">10.1029/2011JB008501</a></li>
<li>Chu, Risheng and Schmandt, Brandon, el al. (2012) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20120411-102851740">Juan de Fuca subduction zone from a mixture of tomography and waveform modeling</a>; Journal of Geophysical Research B; Vol. 117; No. B3; Art. No. B03304; <a href="https://doi.org/10.1029/2012JB009146">10.1029/2012JB009146</a></li>
<li>Chu, Risheng and Schmandt, Brandon, el al. (2012) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20120327-071913122">Upper mantle P velocity structure beneath the Midwestern
United States derived from triplicated waveforms</a>; Geochemistry, Geophysics, Geosystems; Vol. 13; Art. No. Q0Ak04; <a href="https://doi.org/10.1029/2011GC003818">10.1029/2011GC003818</a></li>
<li>Wei, Shengji and Fielding, Eric, el al. (2011) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20111006-084146589">Superficial simplicity of the 2010 El Mayor–Cucapah earthquake of Baja California in Mexico</a>; Nature Geoscience; Vol. 4; No. 9; 615-618; <a href="https://doi.org/10.1038/ngeo1213">10.1038/ngeo1213</a></li>
<li>Chu, Risheng and Wei, Shengji, el al. (2011) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20110906-141014618">Initiation of the great M_w 9.0 Tohoku–Oki earthquake</a>; Earth and Planetary Science Letters; Vol. 308; No. 3-4; 277-283; <a href="https://doi.org/10.1016/j.epsl.2011.06.031">10.1016/j.epsl.2011.06.031</a></li>
<li>Simons, Mark and Minson, Sarah E., el al. (2011) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20110628-105058184">The 2011 Magnitude 9.0 Tohoku-Oki Earthquake: Mosaicking the Megathrust from Seconds to Centuries</a>; Science; Vol. 332; No. 6036; 1421-1425; <a href="https://doi.org/10.1126/science.1206731">10.1126/science.1206731</a></li>
<li>Zhan, Zhongwen and Wei, Shengji, el al. (2011) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20110613-103703524">Earthquake Centroid Locations Using Calibration from Ambient Seismic Noise</a>; Bulletin of the Seismological Society of America; Vol. 101; No. 3; 1438-1445; <a href="https://doi.org/10.1785/0120100118">10.1785/0120100118</a></li>
<li>Liu, Lijun and Tan, Ying, el al. (2011) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20110509-110708842">Trans-Pacific whole mantle structure</a>; Journal of Geophysical Research B; Vol. 116; No. B4; B04306; <a href="https://doi.org/10.1029/2010JB007907">10.1029/2010JB007907</a></li>
<li>Sun, Daoyuan and Helmberger, Don (2011) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20110304-082056247">Upper-mantle structures beneath USArray derived from waveform complexity</a>; Geophysical Journal International; Vol. 184; No. 1; 416-438; <a href="https://doi.org/10.1111/j.1365-246X.2010.04847.x">10.1111/j.1365-246X.2010.04847.x</a></li>
<li>Tan, Ying and Song, Alex, el al. (2010) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20110105-095232362">Surface Wave Path Corrections and Source Inversions in Southern California</a>; Bulletin of the Seismological Society of America; Vol. 100; No. 6; 2891-2904; <a href="https://doi.org/10.1785/0120090063">10.1785/0120090063</a></li>
<li>Luo, Yan and Tan, Ying, el al. (2010) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20110104-114334345">Source Mechanism and Rupture Directivity of the 18 May 2009 M_W 4.6 Inglewood, California, Earthquake</a>; Bulletin of the Seismological Society of America; Vol. 100; No. 6; 3269-3277; <a href="https://doi.org/10.1785/0120100087">10.1785/0120100087</a></li>
<li>Zhan, Zhongwen and Ni, Sidao, el al. (2010) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20100629-165425794">Retrieval of Moho-reflected shear wave arrivals from ambient seismic noise</a>; Geophysical Journal International; Vol. 182; No. 1; 408-420; <a href="https://doi.org/10.1111/j.1365-246X.2010.04625.x">10.1111/j.1365-246X.2010.04625.x</a></li>
<li>Tan, Ying and Helmberger, Don (2010) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20100608-154755897">Rupture Directivity Characteristics of the 2003 Big Bear Sequence</a>; Bulletin of the Seismological Society of America; Vol. 100; No. 3; 1089-1106; <a href="https://doi.org/10.1785/0120090074">10.1785/0120090074</a></li>
<li>Sun, Daoyuan and Helmberger, Don, el al. (2010) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20100602-164912539">A narrow, mid-mantle plume below southern Africa</a>; Geophysical Research Letters; Vol. 37; L09302; <a href="https://doi.org/10.1029/2009GL042339">10.1029/2009GL042339</a></li>
<li>Ni, Sidao and Helmberger, Don, el al. (2010) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20100607-081917185">Rapid Source Estimation from Global Calibrated Paths</a>; Seismological Research Letters; Vol. 81; No. 3; 498-504; <a href="https://doi.org/10.1785/gssrl.81.3.498">10.1785/gssrl.81.3.498</a></li>
<li>Konca, A. Ozgun and Leprince, Sébastien, el al. (2010) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20100225-110542388">Rupture Process of the 1999 M_w 7.1 Duzce Earthquake from Joint Analysis of SPOT, GPS, InSAR, Strong-Motion, and Teleseismic Data: A Supershear Rupture with Variable Rupture Velocity</a>; Bulletin of the Seismological Society of America; Vol. 100; No. 1; 267-288; <a href="https://doi.org/10.1785/0120090072">10.1785/0120090072</a></li>
<li>Chu, Risheng and Helmberger, Don V., el al. (2010) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20100216-092600382">Mushy magma beneath Yellowstone</a>; Geophysical Research Letters; Vol. 37; Art. No. L01306; <a href="https://doi.org/10.1029/2009GL041656">10.1029/2009GL041656</a></li>
<li>Chu, Risheng and Zhu, Lupei, el al. (2009) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20091001-152630282">Determination of earthquake focal depths and source time functions in central Asia using teleseismic P waveforms</a>; Geophysical Research Letters; Vol. 36; L17317; <a href="https://doi.org/10.1029/2009GL039494">10.1029/2009GL039494</a></li>
<li>Sun, Daoyuan and Helmberger, Don, el al. (2009) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20090814-152106630">Direct measures of lateral velocity variation in the deep Earth</a>; Journal of Geophysical Research B; Vol. 114; No. 5; Art. No. B05303; <a href="https://doi.org/10.1029/2008JB005873">10.1029/2008JB005873</a></li>
<li>Song, Teh-Ru Alex and Helmberger, Donald V., el al. (2009) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20090507-090314466">Subducting slab ultra-slow velocity layer coincident with silent earthquakes in southern Mexico</a>; Science; Vol. 324; No. 5926; 502-506; <a href="https://doi.org/10.1126/science.1167595">10.1126/science.1167595</a></li>
<li>Konca, A. Ozgun and Avouac, Jean-Philippe, el al. (2008) <a href="https://resolver.caltech.edu/CaltechAUTHORS:KONnat08">Partial rupture of a locked patch of the Sumatra megathrust during the 2007 earthquake sequence</a>; Nature; Vol. 456; No. 7222; 631-635; <a href="https://doi.org/10.1038/nature07572">10.1038/nature07572</a></li>
<li>Sun, Daoyuan and Helmberger, Don (2008) <a href="https://resolver.caltech.edu/CaltechAUTHORS:SUNjgrb08">Lower mantle tomography and phase change mapping</a>; Journal of Geophysical Research B; Vol. 113; No. B10; Art. No. B10305; <a href="https://doi.org/10.1029/2007JB005289">10.1029/2007JB005289</a></li>
<li>Song, Teh-Ru Alex and Helmberger, Don. V. (2007) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20091130-154154514">Validating tomographic model with broad-band waveform modelling: an example from the LA RISTRA transect in the southwestern United States</a>; Geophysical Journal International; Vol. 171; No. 1; 244-258; <a href="https://doi.org/10.1111/j.1365-246X.2007.03508.x">10.1111/j.1365-246X.2007.03508.x</a></li>
<li>Tan, Ying and Helmberger, Don (2007) <a href="https://resolver.caltech.edu/CaltechAUTHORS:TANbssa07">A new method for determining small earthquake source parameters using short-period P waves</a>; Bulletin of the Seismological Society of America; Vol. 97; No. 4; 1176-1195; <a href="https://doi.org/10.1785/0120060251">10.1785/0120060251</a></li>
<li>Sun, Daoyuan and Helmberger, Don, el al. (2007) <a href="https://resolver.caltech.edu/CaltechAUTHORS:SUNpnas07b">Seismological support for the metastable superplume model, sharp features, and phase changes within the lower mantle</a>; Proceedings of the National Academy of Sciences of the United States of America; Vol. 104; No. 22; 9151-9155; PMCID PMC1890462; <a href="https://doi.org/10.1073/pnas.0608160104">10.1073/pnas.0608160104</a></li>
<li>Chen, Min and Tromp, Jeroen, el al. (2007) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20101115-152637567">Waveform modeling of the slab beneath Japan</a>; Journal of Geophysical Research B; Vol. 112; No. B2; Art. No. B02305; <a href="https://doi.org/10.1029/2006JB004394">10.1029/2006JB004394</a></li>
<li>Sun, Xinlei and Song, Xiaodong, el al. (2007) <a href="https://resolver.caltech.edu/CaltechAUTHORS:SUNpnas07a">Evidence for a chemical-thermal structure at base of mantle from sharp lateral P-wave variations beneath Central America</a>; Proceedings of the National Academy of Sciences of the United States of America; Vol. 104; No. 1; 26-30; PMCID PMC1765446; <a href="https://doi.org/10.1073/pnas.0609143103">10.1073/pnas.0609143103</a></li>
<li>Konca, A. Ozgun and Hjorleifsdottir, Vala, el al. (2007) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20101116-092441405">Rupture Kinematics of the 2005 M_w 8.6 Nias–Simeulue Earthquake from the Joint Inversion of Seismic and Geodetic Data</a>; Bulletin of the Seismological Society of America; Vol. 97; No. 1; S307-S322; <a href="https://doi.org/10.1785/0120050632">10.1785/0120050632</a></li>
<li>Avouac, Jean-Philippe and Ayoub, François, el al. (2006) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20101116-151107763">The 2005, M_w 7.6 Kashmir earthquake: Sub-pixel correlation of ASTER images and seismic waveforms analysis</a>; Earth and Planetary Science Letters; Vol. 249; No. 3-4; 514-528; <a href="https://doi.org/10.1016/j.epsl.2006.06.025">10.1016/j.epsl.2006.06.025</a></li>
<li>Helmberger, D. and Lay, T., el al. (2005) <a href="https://resolver.caltech.edu/CaltechAUTHORS:HELpnas05">Deep mantle structure and the postperovskite phase transition</a>; Proceedings of the National Academy of Sciences of the United States of America; Vol. 102; No. 48; 17257-17263; PMCID PMC1297654; <a href="https://doi.org/10.1073/pnas.0502504102">10.1073/pnas.0502504102</a></li>
<li>Ammon, Charles J. and Ji, Chen, el al. (2005) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20101118-081149907">Rupture Process of the 2004 Sumatra-Andaman Earthquake</a>; Science; Vol. 308; No. 5725; 1133-1139; <a href="https://doi.org/10.1126/science.1112260">10.1126/science.1112260</a></li>
<li>Ni, Sidao and Kanamori, Hiroo, el al. (2005) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20101118-094824674">Seismology:  Energy radiation from the Sumatra earthquake</a>; Nature; Vol. 434; No. 7033; 582-582; <a href="https://doi.org/10.1038/434582a">10.1038/434582a</a></li>
<li>Helmberger, Don V. and Ni, Sidao (2005) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140801-092338935">Approximate 3D Body-Wave Synthetics for Tomographic Models</a>; Bulletin of the Seismological Society of America; Vol. 95; No. 1; 212-224; <a href="https://doi.org/10.1785/0120040004">10.1785/0120040004</a></li>
<li>Helmberger, Don V. and Ni, Sidao (2005) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20110818-084011694">Seismic Modeling Constraints on the South African Super Plume</a>; ISBN 0-87590-425-4; Earth's Deep Mantle: Structure, Composition, and Evolution; 63-81; <a href="https://doi.org/10.1029/160GM06">10.1029/160GM06</a></li>
<li>Ji, Chen and Helmberger, Don V., el al. (2004) <a href="https://resolver.caltech.edu/CaltechAUTHORS:JICes04">A Teleseismic Study of the 2002 Denali Fault, Alaska, Earthquake and Implications for Rapid Strong-Motion Estimation</a>; Earthquake Spectra; Vol. 20; No. 3; 617-637; <a href="https://doi.org/10.1193/1.1778388">10.1193/1.1778388</a></li>
<li>Song, Teh-Ru Alex and Helmberger, Don V., el al. (2004) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20150325-160140009">Low-velocity zone atop the 410-km seismic discontinuity in the northwestern United States</a>; Nature; Vol. 427; No. 6974; 530-533; <a href="https://doi.org/10.1038/nature02231">10.1038/nature02231</a></li>
<li>Savage, Brian and Helmberger, Don V. (2004) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140801-091627948">Site response from incident Pnl waves</a>; Bulletin of the Seismological Society of America; Vol. 94; No. 1; 357-362; <a href="https://doi.org/10.1785/0120030145">10.1785/0120030145</a></li>
<li>Ni, Sidao and Cormier, Vernon F., el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121205-081652536">A Comparison of Synthetic Seismograms for 2D Structures: Semianalytical versus Numerical</a>; Bulletin of the Seismological Society of America; Vol. 93; No. 6; 2752-2757; <a href="https://doi.org/10.1785/0120030011">10.1785/0120030011</a></li>
<li>Ni, Sidao and Helmberger, Don V. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121205-103909971">Further constraints on the African superplume structure</a>; Physics of the Earth and Planetary Interiors; Vol. 140; No. 1-3; 243-251; <a href="https://doi.org/10.1016/j.pepi.2003.07.011">10.1016/j.pepi.2003.07.011</a></li>
<li>Ji, Chen and Helmberger, Donald V., el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121205-135137809">Slip history and dynamic implications of the 1999 Chi-Chi, Taiwan, earthquake</a>; Journal of Geophysical Research B; Vol. 108; No. B9; Art. No. 2412; <a href="https://doi.org/10.1029/2002JB001764">10.1029/2002JB001764</a></li>
<li>Savage, Brian and Ji, Chen, el al. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130213-140633041">Velocity variations in the uppermost mantle beneath the southern Sierra Nevada and Walker Lane</a>; Journal of Geophysical Research B; Vol. 108; No. B7; Art. No. 2325; <a href="https://doi.org/10.1029/2001JB001393">10.1029/2001JB001393</a></li>
<li>Ni, Sidao and Helmberger, Don V. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130220-140045541">Ridge-like lower mantle structure beneath South Africa</a>; Journal of Geophysical Research B; Vol. 108; No. B2; Art. No. 2094; <a href="https://doi.org/10.1029/2001JB001545">10.1029/2001JB001545</a></li>
<li>Ni, Sidao and Helmberger, Don V. (2003) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121211-111133502">Seismological constraints on the South African superplume;
could be the oldest distinct structure on earth</a>; Earth and Planetary Science Letters; Vol. 206; No. 1-2; 119-131; <a href="https://doi.org/10.1016/S0012-821X(02)01072-5">10.1016/S0012-821X(02)01072-5</a></li>
<li>Melbourne, Timothy I. and Helmberger, Donald V. (2002) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130213-152644968">Whole mantle shear structure beneath the East Pacific Rise</a>; Journal of Geophysical Research B; Vol. 107; No. B9; Art. No. 2204; <a href="https://doi.org/10.1029/2001JB000332">10.1029/2001JB000332</a></li>
<li>Ni, Sidao and Tan, Eh, el al. (2002) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121120-125635450">Sharp Sides to the African Superplume</a>; Science; Vol. 296; No. 5574; 1850-1852; <a href="https://doi.org/10.1126/science.1070698">10.1126/science.1070698</a></li>
<li>Rivera, Luis and Sieh, Kerry, el al. (2002) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20110111-152539576">A Comparative Study of the Sumatran Subduction-Zone Earthquakes of 1935 and 1984</a>; Bulletin of the Seismological Society of America; Vol. 92; No. 5; 1721-1736; <a href="https://doi.org/10.1785/0120010106">10.1785/0120010106</a></li>
<li>Ji, Chen and Wald, David J., el al. (2002) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121205-083950391">Source Description of the 1999 Hector Mine, California, Earthquake, Part I: Wavelet Domain Inversion Theory and Resolution Analysis</a>; Bulletin of the Seismological Society of America; Vol. 92; No. 4; 1192-1207; <a href="https://doi.org/10.1785/0120000916">10.1785/0120000916</a></li>
<li>Ji, Chen and Wald, David J., el al. (2002) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121205-084414467">Source Description of the 1999 Hector Mine, California, Earthquake, Part II: Complexity of Slip History</a>; Bulletin of the Seismological Society of America; Vol. 92; No. 4; 1208-1226; <a href="https://doi.org/10.1785/0120000917">10.1785/0120000917</a></li>
<li>Ji, Chen and Helmberger, Donald V., el al. (2001) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20110111-102716913">Slip distribution and tectonic implication of the 1999 Chi‐Chi, Taiwan, Earthquake</a>; Geophysical Research Letters; Vol. 28; No. 23; 4379-4382; <a href="https://doi.org/10.1029/2001GL013225">10.1029/2001GL013225</a></li>
<li>Melbourne, Tim and Helmberger, Don (2001) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130415-102940970">Mantle control of plate boundary deformation</a>; Geophysical Research Letters; Vol. 28; No. 20; 4003-4006; <a href="https://doi.org/10.1029/2001GL013167">10.1029/2001GL013167</a></li>
<li>Saikia, Chandan K. and Helmberger, D. V., el al. (2001) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20190829-131532824">Effects of Source RDP Models and Near-source Propagation: Implication for Seismic Yield Estimation</a>; Pure and Applied Geophysics; Vol. 158; No. 11; 2173-2216; <a href="https://doi.org/10.1007/pl00001145">10.1007/pl00001145</a></li>
<li>Savage, Brian and Helmberger, Don V. (2001) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121211-134915343">Kursk Explosion</a>; Bulletin of the Seismological Society of America; Vol. 91; No. 4; 753-759; <a href="https://doi.org/10.1785/0120000295">10.1785/0120000295</a></li>
<li>Luo, Sheng-Nian and Ni, Sidao, el al. (2001) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121211-104806124">Evidence for a sharp lateral variation of velocity at the
core-mantle boundary from multipathed PKPab</a>; Earth and Planetary Science Letters; Vol. 189; No. 3-4; 155-164; <a href="https://doi.org/10.1016/S0012-821X(01)00364-8">10.1016/S0012-821X(01)00364-8</a></li>
<li>Ni, Sidao and Helmberger, Don V. (2001) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130115-082524407">Probing an ultra-low velocity zone at the core mantle boundary with P and S waves</a>; Geophysical Research Letters; Vol. 28; No. 12; 2345-2348; <a href="https://doi.org/10.1029/2000GL012766">10.1029/2000GL012766</a></li>
<li>Ni, Sidao and Helmberger, Don V. (2001) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121211-101812983">Horizontal transition from fast to slow structures at the
core-mantle boundary; South Atlantic</a>; Earth and Planetary Science Letters; Vol. 187; No. 3-4; 301-310; <a href="https://doi.org/10.1016/S0012-821X(01)00273-4">10.1016/S0012-821X(01)00273-4</a></li>
<li>Helmberger, D. V. and Song, X. J., el al. (2001) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121128-093252424">Crustal complexity from regional waveform tomography: Aftershocks of the 1992 Landers earthquake, California</a>; Journal of Geophysical Research B; Vol. 106; No. B1; 609-620; <a href="https://doi.org/10.1029/2000JB900231">10.1029/2000JB900231</a></li>
<li>Helmberger, Don and Ni, Sidao, el al. (2000) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130128-082945301">Seismic evidence for ultralow-velocity zones beneath Africa and eastern Atlantic</a>; Journal of Geophysical Research B; Vol. 105; No. B10; 23865-23878; <a href="https://doi.org/10.1029/2000JB900143">10.1029/2000JB900143</a></li>
<li>Ji, Chen and Helmberger, Don V., el al. (2000) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121211-135304099">Basin Structure Estimation by Waveform Modeling: Forward and Inverse Methods</a>; Bulletin of the Seismological Society of America; Vol. 90; No. 4; 964-976; <a href="https://doi.org/10.1785/0119990080">10.1785/0119990080</a></li>
<li>Ni, Sidao and Ding, Xiaoming, el al. (2000) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130227-111141468">Constructing synthetics from deep earth tomographic models</a>; Geophysical Journal International; Vol. 140; No. 1; 71-82; <a href="https://doi.org/10.1046/j.1365-246x.2000.00982.x">10.1046/j.1365-246x.2000.00982.x</a></li>
<li>Scrivner, Craig W. and Helmberger, Donald V. (1999) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121211-135914948">Finite-difference modeling of two aftershocks of the 1994 Northridge, California, earthquake</a>; Bulletin of the Seismological Society of America; Vol. 89; No. 6; 1505-1518</li>
<li>Sidorin, Igor and Gurnis, Michael, el al. (1999) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121128-133210820">Evidence for a Ubiquitous Seismic Discontinuity at the Base of the Mantle</a>; Science; Vol. 286; No. 5443; 1326-1331; <a href="https://doi.org/10.1126/science.286.5443.1326">10.1126/science.286.5443.1326</a></li>
<li>Ni, Sidao and Ding, Xiaoming, el al. (1999) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121211-113907160">Low-velocity structure beneath Africa from forward modeling</a>; Earth and Planetary Science Letters; Vol. 170; No. 4; 497-507; <a href="https://doi.org/10.1016/S0012-821X(99)00121-1">10.1016/S0012-821X(99)00121-1</a></li>
<li>Sidorin, Igor and Gurnis, Michael, el al. (1999) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130311-145952642">Dynamics of a phase change at the base of the mantle consistent with seismological observations</a>; Journal of Geophysical Research B; Vol. 104; No. B4; 15005-15023; <a href="https://doi.org/10.1029/1999JB900065">10.1029/1999JB900065</a></li>
<li>Scrivner, Craig W. and Helmberger, Donald V. (1999) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130115-100522727">Variability of ground motions in southern California—data from the 1995 to 1996 Ridgecrest sequence</a>; Bulletin of the Seismological Society of America; Vol. 89; No. 3; 626-639</li>
<li>Thio, Hong Kie and Song, Xi, el al. (1999) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130109-112506642">Seismic source and structure estimation in the western
Mediterranean using a sparse broadband network</a>; Journal of Geophysical Research B; Vol. 104; No. B1; 845-861; <a href="https://doi.org/10.1029/98JB01498">10.1029/98JB01498</a></li>
<li>Ritsema, Jeroen and Ni, Sidao, el al. (1998) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130220-102248772">Evidence for strong shear velocity reductions and velocity gradients in the lower mantle beneath Africa</a>; Geophysical Research Letters; Vol. 25; No. 23; 4245-4248; <a href="https://doi.org/10.1029/1998GL900127">10.1029/1998GL900127</a></li>
<li>Jones, Laura E. and Helmberger, Donald V. (1998) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121205-135219429">Earthquake Source Parameters and Fault Kinematics in the Eastern California Shear Zone</a>; Bulletin of the Seismological Society of America; Vol. 88; No. 6; 1337-1352</li>
<li>Helmberger, D. V. and Wen, L., el al. (1998) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130402-103002791">Seismic evidence that the source of the Iceland hotspot lies at the core-mantle boundary</a>; Nature; Vol. 396; No. 6708; 251-255; <a href="https://doi.org/10.1038/24357">10.1038/24357</a></li>
<li>Sidorin, Igor and Gurnis, Michael, el al. (1998) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121211-112435944">Interpreting D&quot; seismic structure using synthetic waveforms computed from dynamic models</a>; Earth and Planetary Science Letters; Vol. 163; No. 1-4; 31-41; <a href="https://doi.org/10.1016/S0012-821X(98)00172-1">10.1016/S0012-821X(98)00172-1</a></li>
<li>Song, Xiaodong and Helmberger, Don V. (1998) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130125-142622708">Seismic Evidence for an Inner Core Transition Zone</a>; Science; Vol. 282; No. 5390; 924-927; <a href="https://doi.org/10.1126/science.282.5390.924">10.1126/science.282.5390.924</a></li>
<li>Zhu, Lupei and Helmberger, Donald V. (1998) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121205-103505965">Moho Offset Across the Northern Margin of the Tibetan Plateau</a>; Science; Vol. 281; No. 5380; 1170-1172; <a href="https://doi.org/10.1126/science.281.5380.1170">10.1126/science.281.5380.1170</a></li>
<li>Wen, Lianxing and Helmberger, Donald V. (1998) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121129-110137879">A two-dimensional P-SV hybrid method and its application to modeling localized structures near the core-mantle boundary</a>; Journal of Geophysical Research B; Vol. 103; No. B8; 17,901-17,918; <a href="https://doi.org/10.1029/98JB01276">10.1029/98JB01276</a></li>
<li>Garnero, Edward J. and Helmberger, Donald V. (1998) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121129-104248537">Further structural constraints and uncertainties of a thin
laterally varying ultralow-velocity layer at the base of the mantle</a>; Journal of Geophysical Research B; Vol. 103; No. B6; 12,495-12,509; <a href="https://doi.org/10.1029/98JB00700">10.1029/98JB00700</a></li>
<li>Melbourne, Tim and Helmberger, Don (1998) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121129-103321400">Fine structure of the 410-km discontinuity</a>; Journal of Geophysical Research B; Vol. 103; No. B5; 10,091-10,102; <a href="https://doi.org/10.1029/98JB00164">10.1029/98JB00164</a></li>
<li>Wen, Lianxing and Helmberger, Donald V. (1998) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121205-135027367">Ultra-Low Velocity Zones Near the Core-Mantle Boundary from Broadband PKP Precursors</a>; Science; Vol. 279; No. 5357; 1701-1703; <a href="https://doi.org/10.1126/science.279.5357.1701">10.1126/science.279.5357.1701</a></li>
<li>Song, Xi J. and Helmberger, Donald V. (1998) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130104-073150017">Pseudo Green's Functions and Waveform Tomography</a>; Bulletin of the Seismological Society of America; Vol. 88; No. 1; 304-312</li>
<li>Sato, Toshiaki and Helmberger, Donald V., el al. (1998) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130109-111101743">Estimates of regional and local strong motions during the great 1923 Kanto, Japan, earthquake (Ms 8.2). Part 1: Source estimation of a calibration event and modeling of wave propagation paths</a>; Bulletin of the Seismological Society of America; Vol. 88; No. 1; 183-205</li>
<li>Helmberger, Don (1998) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20141028-085930692">Helmberger Receives Lehmann Medal</a>; Eos; Vol. 79; No. 4; 47; <a href="https://doi.org/10.1029/98EO00032">10.1029/98EO00032</a></li>
<li>Zhu, Lupei and Helmberger, Donald V., el al. (1997) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121129-101823799">Regional waveform calibration in the Pamir-Hindu Kush region</a>; Journal of Geophysical Research B; Vol. 102; No. B10; 22,799-22,813; <a href="https://doi.org/10.1029/97JB01855">10.1029/97JB01855</a></li>
<li>Song, Xiaodong and Helmberger, Don V. (1997) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121129-094531915">PKP differential travel times: Implications for 3-D lower mantle structure</a>; Geophysical Research Letters; Vol. 24; No. 15; 1863-1866; <a href="https://doi.org/10.1029/97GL01761">10.1029/97GL01761</a></li>
<li>Saikia, Chandan K. and Helmberger, D. V. (1997) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130204-103833144">Approximation of Rupture Directivity in Regional Phases Using Upgoing and Downgoing Wave Fields</a>; Bulletin of the Seismological Society of America; Vol. 87; No. 4; 987-998</li>
<li>Song, Xi J. and Helmberger, Donald V. (1997) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121212-080639791">Northridge aftershocks, a source study with TERRAscope data</a>; Bulletin of the Seismological Society of America; Vol. 87; No. 4; 1024-1034</li>
<li>Woods, Bradley B. and Helmberger, Donald V. (1997) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140806-090933206">Regional Seismic Discriminants Using Wave-Train Energy Ratios</a>; Bulletin of the Seismological Society of America; Vol. 87; No. 3; 589-605</li>
<li>Wen, Lianxing and Helmberger, Donald V. (1997) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121128-105034433">Propagational Corrections for Basin Structure: Landers Earthquake</a>; Bulletin of the Seismological Society of America; Vol. 87; No. 3; 782-787</li>
<li>Ding, Xiaoming and Helmberger, Donald V. (1997) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121128-133116039">Modelling D″ structure beneath Central America with broadband seismic data</a>; Physics of the Earth and Planetary Interiors; Vol. 101; No. 3-4; 245-270; <a href="https://doi.org/10.1016/S0031-9201(97)00001-0">10.1016/S0031-9201(97)00001-0</a></li>
<li>Pino, N. Alessandro and Helmberger, Donald V. (1997) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121128-104350830">Upper mantle compressional velocity structure beneath the West Mediterranean Basin</a>; Journal of Geophysical Research B; Vol. 102; No. B2; 2953-2967; <a href="https://doi.org/10.1029/96JB03461">10.1029/96JB03461</a></li>
<li>Mori, Jim and Helmberger, Donald (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121211-153958278">Large-amplitude Moho reflections (SmS) from Landers aftershocks, southern California</a>; Bulletin of the Seismological Society of America; Vol. 86; No. 6; 1845-1852</li>
<li>Zhu, Lupei and Helmberger, Donald V. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130122-104326713">Advancement in Source Estimation Techniques Using Broadband Regional Seismograms</a>; Bulletin of the Seismological Society of America; Vol. 86; No. 5; 1634-1641</li>
<li>Helmberger, D. V. and Garnero, E. J., el al. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121128-103352821">Modeling two-dimensional structure at the core-mantle
boundary</a>; Journal of Geophysical Research B; Vol. 101; No. B6; 13,963-13,972; <a href="https://doi.org/10.1029/96JB00534">10.1029/96JB00534</a></li>
<li>Song, Xi J. and Helmberger, Donald V. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121128-105738825">Source Estimation of Finite Faults from Broadband Regional Networks</a>; Bulletin of the Seismological Society of America; Vol. 86; No. 3; 797-804</li>
<li>Garnero, Edward J. and Helmberger, Donald V. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121127-152932227">Seismic detection of a thin laterally varying boundary layer
at the base of the mantle beneath the central-Pacific</a>; Geophysical Research Letters; Vol. 23; No. 9; 977-980; <a href="https://doi.org/10.1029/95GL03603">10.1029/95GL03603</a></li>
<li>Song, Xi J. and Helmberger, Donald V., el al. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130624-105059362">Broad-Band Modelling of Regional Seismograms: the Basin and Range Crustal Structure</a>; Geophysical Journal International; Vol. 125; No. 1; 15-29; <a href="https://doi.org/10.1111/j.1365-246X.1996.tb06531.x">10.1111/j.1365-246X.1996.tb06531.x</a></li>
<li>Zhu, Lupei and Helmberger, Donald V. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121128-102606226">Intermediate depth earthquakes beneath the India-Tibet
collision zone</a>; Geophysical Research Letters; Vol. 23; No. 5; 435-438; <a href="https://doi.org/10.1029/96GL00385">10.1029/96GL00385</a></li>
<li>Zhao, Lian-She and Helmberger, Donald V. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130305-083904557">Regional moments, energy levels, and a new discriminant</a>; Pure and Applied Geophysics; Vol. 146; No. 2; 281-304; <a href="https://doi.org/10.1007/BF00876494">10.1007/BF00876494</a></li>
<li>Jones, Laura E. and Helmberger, Donald V. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121128-101239920">Seismicity and stress-drop in the eastern Transverse ranges,
Southern California</a>; Geophysical Research Letters; Vol. 23; No. 3; 233-236; <a href="https://doi.org/10.1029/96GL00012">10.1029/96GL00012</a></li>
<li>Wald, David J. and Heaton, Thomas H., el al. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121126-145417758">Strong-Motion and Broadband Teleseismic Analysis of the Earthquake for Rupture Process and Hazards Assessment</a></li>
<li>Helmberger, Don V. and Woods, Brad (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121203-091244448">Regional Source Parameters, Seismic Energy, and Discrimination</a>; ISBN 9780792338116; Monitoring a comprehensive test ban treaty; 365-383</li>
<li>Helmberger, Don V. and Zhao, Lian-She, el al. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121203-095459179">Construction of Synthetics for 2D structures; core phases</a>; ISBN 978-8877940803; Seismic modelling of earth structure; 183-221</li>
<li>Song, Xi J. and Jones, Laura E., el al. (1995) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121205-082930182">Source characteristics of the 17 January 1994 Northridge, California, earthquake from regional broadband modeling</a>; Bulletin of the Seismological Society of America; Vol. 85; No. 6; 1591-1603</li>
<li>Mori, Jim and Helmberger, Donald V. (1995) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121128-100600084">Localized boundary layer below the mid-Pacific velocity anomaly identified from a PeP precursor</a>; Journal of Geophysical Research B; Vol. 100; No. B10; 20,359-20,365; <a href="https://doi.org/10.1029/95JB02243">10.1029/95JB02243</a></li>
<li>Garnero, Edward J. and Helmberger, Donald V. (1995) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121205-105547056">A very slow basal layer underlying large-scale low-velocity
anomalies in the lower mantle beneath the Pacific:
evidence from core phases</a>; Physics of the Earth and Planetary Interiors; Vol. 91; No. 1-3; 161-176; <a href="https://doi.org/10.1016/0031-9201(95)03039-Y">10.1016/0031-9201(95)03039-Y</a></li>
<li>Garnero, Edward J. and Helmberger, Donald V. (1995) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20150204-150153779">Seismic Resolution of the Earth's Outermost Core in Relation to Lower Mantle Heterogeneity</a></li>
<li>Scrivner, Craig W. and Helmberger, Donald V. (1995) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121212-074400392">Preliminary work on an early warning and rapid response program for moderate earthquakes</a>; Bulletin of the Seismological Society of America; Vol. 85; No. 4; 1257-1265</li>
<li>Song, Xiaodong and Helmberger, Don V. (1995) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121128-094644476">Depth dependence of anisotropy of Earth's inner core</a>; Journal of Geophysical Research B; Vol. 100; No. B6; 9805-9816; <a href="https://doi.org/10.1029/95JB00244">10.1029/95JB00244</a></li>
<li>Song, Xiaodong and Helmberger, Don V. (1995) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121127-152015147">A P wave velocity model of Earth's core</a>; Journal of Geophysical Research B; Vol. 100; No. B7; 9817-9830; <a href="https://doi.org/10.1029/94JB03135">10.1029/94JB03135</a></li>
<li>Garnero, Edward J. and Helmberger, Donald V. (1995) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121205-104754253">On seismic resolution of lateral heterogeneity in the Earth's  outermost core</a>; Physics of the Earth and Planetary Interiors; Vol. 88; No. 2; 117-130; <a href="https://doi.org/10.1016/0031-9201(94)02976-I">10.1016/0031-9201(94)02976-I</a></li>
<li>Scrivner, Craig W. and Helmberger, Donald V. (1994) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140806-141510926">Seismic Waveform Modeling in the Los Angeles Basin</a>; Bulletin of the Seismological Society of America; Vol. 84; No. 5; 1310-1326</li>
<li>Zhao, Lian-She and Helmberger, Donald V. (1994) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140806-072507898">Source Estimation from Broadband Regional Seismograms</a>; Bulletin of the Seismological Society of America; Vol. 84; No. 1; 91-104</li>
<li>Saikia, Chandan K. and Dreger, Douglas S., el al. (1994) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140805-144300325">Modeling of Energy Amplification Recorded within Greater Los Angeles Using Irregular Structure</a>; Bulletin of the Seismological Society of America; Vol. 84; No. 1; 47-61</li>
<li>Jones, L. E. and Hough, S. E., el al. (1993) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140115-151138078">Rupture process of the June 28, 1992 Big Bear Earthquake</a>; Geophysical Research Letters; Vol. 20; No. 18; 1907-1910; <a href="https://doi.org/10.1029/93GL02046">10.1029/93GL02046</a></li>
<li>Woods, Bradley B. and Kedar, Sharon, el al. (1993) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140806-133156297">M_L:M_0 as a regional seismic discriminant</a>; Bulletin of the Seismological Society of America; Vol. 83; No. 4; 1167-1183</li>
<li>Wald, David J. and Kanamori, Hiroo, el al. (1993) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130204-090427264">Source study of the 1906 San Francisco earthquake</a>; Bulletin of the Seismological Society of America; Vol. 83; No. 4; 981-1019</li>
<li>Helmberger, Donald V. and Dreger, Douglas S., el al. (1993) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140806-091536952">Impact of Broadband Seismology on the Understanding of Strong Motions</a>; Bulletin of the Seismological Society of America; Vol. 83; No. 3; 830-850</li>
<li>Garnero, E. J. and Helmberger, D. V., el al. (1993) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180329-152142655">Preliminary observations from the use of US-Soviet Joint Seismic Program data to model upper mantle triplications beneath Asia</a>; Geophysical Journal International; Vol. 113; No. 1; 252-259; <a href="https://doi.org/10.1111/j.1365-246X.1993.tb02544.x">10.1111/j.1365-246X.1993.tb02544.x</a></li>
<li>Helmberger, D. V. and Somerville, P. G., el al. (1992) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140806-092337671">The Location and Source Parameters of the Lompoc, California, Earthquake of 4 November 1927</a>; Bulletin of the Seismological Society of America; Vol. 82; No. 4; 1678-1709</li>
<li>Wald, David J. and Hartzell, Stephen H., el al. (1992) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140806-145332774">Reply to Arthur Frankel's &quot;Comment on 'Rupture process of the 1987 Superstition Hills earthquake from the inversion of strong-motion data'&quot;</a>; Bulletin of the Seismological Society of America; Vol. 82; No. 3; 1519-1533</li>
<li>Bent, Allison L. and Helmberger, Donald V. (1991) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140806-102033680">A re-examination of historic earthquakes in the San Jacinto fault zone, California</a>; Bulletin of the Seismological Society of America; Vol. 81; No. 6; 2289-2309</li>
<li>Burdick, L. J. and Garnero, E. J., el al. (1991) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20191101-084920369">Time Domain Regional Discriminants</a></li>
<li>Wald, David J. and Helmberger, Donald V., el al. (1991) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121213-141842168">Rupture model of the 1989 Loma Prieta earthquake from the inversion of strong-motion and broadband teleseismic data</a>; Bulletin of the Seismological Society of America; Vol. 81; No. 5; 1540-1572</li>
<li>Dreger, Douglas S. and Helmberger, Donald V. (1991) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140806-130440939">Complex faulting deduced from broadband modeling of the 28 February 1990 Upland earthquake (M_L = 5.2)</a>; Bulletin of the Seismological Society of America; Vol. 81; No. 4; 1129-1144</li>
<li>Zhao, Lian-She and Helmberger, Donald V., el al. (1991) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140317-131844927">Shear-velocity structure of the crust and upper mantle beneath the Tibetan Plateau and southeastern China</a>; Geophysical Journal International; Vol. 105; No. 3; 713-730; <a href="https://doi.org/10.1111/j.1365-246X.1991.tb00807.x">10.1111/j.1365-246X.1991.tb00807.x</a></li>
<li>Bent, Allison L. and Helmberger, Donald V. (1991) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140806-085628992">Seismic characteristics of earthquakes along the offshore extension of the western transverse ranges, California</a>; Bulletin of the Seismological Society of America; Vol. 81; No. 2; 399-422</li>
<li>Hauksson, Egill and Jones, Lucile, el al. (1991) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121127-093130762">Southern California Seismographic Network; report to the U.S. Geological Survey, August 21, 1990</a>; <a href="https://doi.org/10.3133/ofr9138">10.3133/ofr9138</a></li>
<li>Dreger, Douglas S. and Helmberger, Donald V. (1990) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140806-132043510">Broadband modeling of local earthquakes</a>; Bulletin of the Seismological Society of America; Vol. 80; No. 5; 1162-1179</li>
<li>Somerville, Paul G. and McLaren, James P., el al. (1990) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140806-091659826">The 25 November 1988 Saguenay, Quebec, Earthquake: Source Parameters and the Attenuation of Strong Ground Motion</a>; Bulletin of the Seismological Society of America; Vol. 80; No. 5; 1118-1143</li>
<li>Wald, David J. and Helmberger, Donald V., el al. (1990) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140806-112708448">Rupture process of the 1987 Superstition Hills earthquake from the inversion of strong-motion data</a>; Bulletin of the Seismological Society of America; Vol. 80; No. 5; 1079-1098</li>
<li>Bent, Allison L. and Helmberger, Donald V., el al. (1989) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140813-084517783">Waveform modeling of the November 1987 Superstition Hills earthquake</a>; Bulletin of the Seismological Society of America; Vol. 79; No. 2; 500-514</li>
<li>Stead, Richard J. and Helmberger, Donald V. (1988) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20190214-145049962">Numerical-analytical interfacing in two dimensions with applications to modeling NTS seismograms</a>; Pure and Applied Geophysics; Vol. 128; No. 1-2; 157-193; <a href="https://doi.org/10.1007/BF01772596">10.1007/BF01772596</a></li>
<li>Vidale, John E. and Helmberger, Donald V. (1988) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140812-142912635">Elastic finite-difference modeling of the 1971 San Fernando, California earthquake</a>; Bulletin of the Seismological Society of America; Vol. 78; No. 1; 122-141</li>
<li>Helmberger, Donald V. and Vidale, John E. (1988) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140813-142251802">Modeling strong motions produced by earthquakes with two-dimensional numerical codes</a>; Bulletin of the Seismological Society of America; Vol. 78; No. 1; 109-121</li>
<li>Burger, R. W. and Somerville, P. G., el al. (1987) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140902-143830541">The effect of crustal structure on strong ground motion attenuation relations in eastern North America</a>; Bulletin of the Seismological Society of America; Vol. 77; No. 2; 420-439</li>
<li>Somerville, P. G. and McLaren, J. P., el al. (1987) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140902-134502150">Comparison of source scaling relations of eastern and western North American earthquakes</a>; Bulletin of the Seismological Society of America; Vol. 77; No. 2; 322-346</li>
<li>Wallace, T. C. and Helmberger, D. V., el al. (1986) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140902-142331911">Reply to comments by A. Douglas, J. B. Young, and N. S. Lyman and a note on the revised moments for Pahute Mesa tectonic release</a>; Bulletin of the Seismological Society of America; Vol. 76; No. 1; 313-318</li>
<li>Vidale, John and Helmberger, Donald V., el al. (1985) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121017-100933090">Finite-difference seismograms for SH waves</a>; Bulletin of the Seismological Society of America; Vol. 75; No. 6; 1765-1782</li>
<li>Liu, Hsui-Lin and Helmberger, Donald V. (1985) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140813-134554322">The 23:19 aftershock of the 15 October 1979 Imperial Valley earthquake: More evidence for an asperity</a>; Bulletin of the Seismological Society of America; Vol. 75; No. 3; 689-708</li>
<li>Scott, Patricia and Helmberger, Donald V. (1985) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140813-143111079">Applications of the transmitted Kirchhoff-Holmholtz method to transmitted body waves and possible structural effects at NTS</a>; Bulletin of the Seismological Society of America; Vol. 75; No. 1; 131-156</li>
<li>Wallace, Terry C. and Helmberger, Donald V., el al. (1985) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140812-133439918">Evidence of tectonic release from underground nuclear explosions in long-period S waves</a>; Bulletin of the Seismological Society of America; Vol. 75; No. 1; 157-174</li>
<li>Burdick, L. J. and Barker, J. S., el al. (1985) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20150928-081250895">Linear Elastic Waveform Modeling in the Inelastic Region of Underground Nuclear Explosions</a></li>
<li>Lay, Thorne and Helmberger, Don V., el al. (1984) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140313-153952350">Source models and yield-scaling relations for underground nuclear explosions at Amchitka Island</a>; Bulletin of the Seismological Society of America; Vol. 74; No. 3; 843-862</li>
<li>Lay, Thorne and Wallace, Terry C., el al. (1984) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140902-144348983">The effects of tectonic release on short-period P waves from NTS explosions</a>; Bulletin of the Seismological Society of America; Vol. 74; No. 3; 819-842</li>
<li>Lay, Thorne and Helmberger, Donald V. (1983) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140902-105154431">Body-wave amplitude and travel-time correlations across North America</a>; Bulletin of the Seismological Society of America; Vol. 73; No. 4; 1063-1076</li>
<li>Liu, Hsui-Lin and Helmberger, Donald V. (1983) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140813-144021468">The near-source ground motion of the 6 August 1979 Coyote Lake, California, earthquake</a>; Bulletin of the Seismological Society of America; Vol. 73; No. 1; 201-218</li>
<li>Hadley, David M. and Helmberger, Donald V., el al. (1982) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140903-082810865">Peak acceleration scaling studies</a>; Bulletin of the Seismological Society of America; Vol. 72; No. 3; 959-979</li>
<li>Ebel, John E. and Helmberger, Donald V. (1982) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140902-135344882">P-wave complexity and fault asperities: The Borrego Mountain, California, earthquake of 1968</a>; Bulletin of the Seismological Society of America; Vol. 72; No. 2; 413-437</li>
<li>Hartzell, Stephen and Helmberger, Donald V. (1982) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140902-150007304">Strong-motion modeling of the Imperial Valley earthquake of 1979</a>; Bulletin of the Seismological Society of America; Vol. 72; No. 2; 571-596</li>
<li>Wallace, Terry C. and Helmberger, Don V., el al. (1981) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140903-131025027">A broadband study of the 13 August 1978 Santa Barbara earthquake</a>; Bulletin of the Seismological Society of America; Vol. 71; No. 6; 1701-1718</li>
<li>Helmberger, Donald V. and Hadley, David M. (1981) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140813-135856907">Seismic source functions and attenuation from local and teleseismic observations of the NTS events Jorum and Handley</a>; Bulletin of the Seismological Society of America; Vol. 71; No. 1; 51-67</li>
<li>Helmberger, D. V. and Engen, G. R. (1980) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140819-154914308">Modeling the long-period body waves from shallow earthquakes at regional ranges</a>; Bulletin of the Seismological Society of America; Vol. 70; No. 5; 1699-1714</li>
<li>Hadley, David M. and Helmberger, Donald V. (1980) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140902-150957130">Simulation of strong ground motions</a>; Bulletin of the Seismological Society of America; Vol. 70; No. 2; 617-630</li>
<li>Heaton, Thomas H. and Helmberger, Donald V. (1979) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20130204-115012596">Generalized ray models of the San Fernando Earthquake</a>; Bulletin of the Seismological Society of America; Vol. 69; No. 5; 1311-1341</li>
<li>Burdick, L. J. and Helmberger, D. V. (1979) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140813-093107459">Time functions appropriate for nuclear explosions</a>; Bulletin of the Seismological Society of America; Vol. 69; No. 4; 957-973</li>
<li>Helmberger, D. V. and Burdick, L. J. (1979) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20161019-104218647">Synthetic Seismograms</a>; Annual Review of Earth and Planetary Sciences; Vol. 7; 417-442; <a href="https://doi.org/10.1146/annurev.ea.07.050179.002221">10.1146/annurev.ea.07.050179.002221</a></li>
<li>Hong, Tai-Lin and Helmberger, Donald V. (1978) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140826-142149049">Glorified optics and wave propagation in nonplanar structure</a>; Bulletin of the Seismological Society of America; Vol. 68; No. 5; 1313-1330</li>
<li>Mellman, George R. and Helmberger, Donald V. (1978) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20170410-085310544">A modified first-motion approximation for the synthesis of body-wave seismograms</a>; Geophysical Journal International; Vol. 54; No. 1; 129-140; <a href="https://doi.org/10.1111/j.1365-246X.1978.tb06760.x">10.1111/j.1365-246X.1978.tb06760.x</a></li>
<li>Helmberger, D. V. and Engen, G. (1978) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140812-145221942">Fine structure of an oceanic crustal section near the East Pacific Rise</a>; Bulletin of the Seismological Society of America; Vol. 68; No. 2; 369-382</li>
<li>Harkrider, D. G. and Helmberger, D. V. (1978) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140313-153000014">A note on nonequivalent quadrupole source cylindrical shear potentials which give equal displacements</a>; Bulletin of the Seismological Society of America; Vol. 68; No. 1; 125-132</li>
<li>Heaton, Thomas H. and Helmberger, Donald V. (1978) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121121-100923266">Predictability of strong ground motion in the Imperial Valley: Modeling the M4.9, November 4, 1976 Brawley earthquake</a>; Bulletin of the Seismological Society of America; Vol. 68; No. 1; 31-48</li>
<li>Helmberger, Donald V. and Jennings, Paul C. (1978) <a href="https://resolver.caltech.edu/CaltechEERL:EERL.1978.002">Strong ground motion : N.S.F. Seminar-Workshop Proceedings</a></li>
<li>Heaton, Thomas H. and Helmberger, Donald V. (1978) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121127-101407169">Synthesis of San Fernando strong-motion records</a></li>
<li>Hong, Tai-Lin and Helmberger, Donald V. (1977) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140813-132752346">Generalized ray theory for dipping structure</a>; Bulletin of the Seismological Society of America; Vol. 67; No. 4; 995-1008</li>
<li>Heaton, Thomas H. and Helmberger, Donald V. (1977) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20121121-102148439">A study of the strong ground motion of the Borrego Mountain, California, earthquake</a>; Bulletin of the Seismological Society of America; Vol. 67; No. 2; 315-330</li>
<li>Helmberger, Donald V. and Johnson, Lane R. (1977) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140812-134040627">Source parameters of moderate size earthquakes and the importance of receiver crustal structure in interpreting observations of local earthquakes</a>; Bulletin of the Seismological Society of America; Vol. 67; No. 2; 301-313</li>
<li>King, David and Helmberger, Donald V. (1975) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140812-121312275">Time functions appropriate for some aftershocks of the Point Mugu, California earthquake of February 21, 1973</a>; Bulletin of the Seismological Society of America; Vol. 65; No. 1; 127-132</li>
<li>Langston, Charles A. and Helmberger, Donald V. (1974) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140919-131512193">Interpretation of body and Rayleigh waves from NTS to Tucson</a>; Bulletin of the Seismological Society of America; Vol. 64; No. 6; 1919-1929</li>
<li>Burdick, L. J. and Helmberger, D. V. (1974) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140912-092026540">Time functions appropriate for deep earthquakes</a>; Bulletin of the Seismological Society of America; Vol. 64; No. 5; 1419-1427</li>
<li>Mellman, George R. and Helmberger, Donald V. (1974) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140902-153934113">High-frequency attenuation by a thin high-velocity layer</a>; Bulletin of the Seismological Society of America; Vol. 64; No. 5; 1383-1388</li>
<li>Helmberger, Donald V. (1974) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140812-114912491">Generalized ray theory for shear dislocations</a>; Bulletin of the Seismological Society of America; Vol. 64; No. 1; 45-64</li>
<li>Helmberger, Donald V. (1973) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140812-162944071">Numerical seismograms of long-period body waves from seventeen to forty degrees</a>; Bulletin of the Seismological Society of America; Vol. 63; No. 2; 633-646</li>
<li>Allen, Clarence R. and Helmberger, Donald V. (1973) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140917-094944198">Search for temporal changes in seismic velocities using large explosions in southern California</a></li>
<li>Helmberger, D. V. and Harkrider, D. G. (1972) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20151029-082401562">Seismic Source Descriptions of Underground Explosions and a Depth Discriminate</a>; Geophysical Journal International; Vol. 31; No. 1-3; 45-66; <a href="https://doi.org/10.1111/j.1365-246X.1972.tb02358.x">10.1111/j.1365-246X.1972.tb02358.x</a></li>
<li>Helmberger, Donald V. (1972) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140812-141724157">Long-period body-wave propagation from 4° to 13°</a>; Bulletin of the Seismological Society of America; Vol. 62; No. 1; 325-341</li>
<li>Abrams, M. and Allen, C., el al. (1971) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20140812-151015768">Preliminary seismological and geological studies of the San Fernando, California, earthquake of February 9 1971</a>; Bulletin of the Seismological Society of America; Vol. 61; No. 2; 491-495</li>
</ul>