Publications


Shearer, P. M., Abercrombie, R. E., & Trugman, D. T. (2022). Improved Stress Drop Estimates for M 1.5 to 4 Earthquakes in Southern California From 1996 to 2019. Journal of Geophysical Research-Solid Earth, 127(7), 23. https://doi.org/10.1029/2022jb024243
Liu, T. Z., & Shearer, P. M. (2022). Likely P-to-S Conversion at the Core-Mantle Boundary Extracted From Array Processing of Noise Records. Geophysical Research Letters, 49(7), 11. https://doi.org/10.1029/2021gl097034
Abercrombie, R. E., Trugman, D. T., Shearer, P. M., Chen, X. W., Zhang, J. W., Pennington, C. N., Hardebeck, J. L., Goebel, T. H. W., & Ruhl, C. J. (2021). Does earthquake stress drop increase with depth in the crust? Journal of Geophysical Research-Solid Earth, 126(10), 22. https://doi.org/10.1029/2021jb022314
Lin, G. Q., & Shearer, P. M. (2021). Spatiotemporal variations of focal mechanism and in situ V-p/V-s ratio during the 2018 Kilauea eruption. Geophysical Research Letters, 48(18), 11. https://doi.org/10.1029/2021gl094636
Liu, T. Z., & Shearer, P. M. (2021). Complicated lithospheric structure beneath the contiguous us revealed by teleseismic S-reflections. Journal of Geophysical Research-Solid Earth, 126(5), 20. https://doi.org/10.1029/2020jb021624
Shearer, P. M., & Abercrombie, R. E. (2021). Calibrating spectral decomposition of local earthquakes using borehole seismic records-results for the 1992 Big Bear aftershocks in Southern California. Journal of Geophysical Research-Solid Earth, 126(3). https://doi.org/10.1029/2020jb020561
Matoza, R. S., Okubo, P. G., & Shearer, P. M. (2021). Comprehensive high-precision relocation of seismicity on the island of Hawai’i 1986-2018. Earth and Space Science, 8(1). https://doi.org/10.1029/2020ea001253
Tian, D. D., Lv, M. D., Wei, S., Dorfman, S. M., & Shearer, P. M. (2020). Global variations of Earth’s 520-and 560-km discontinuities. Earth and Planetary Science Letters, 552. https://doi.org/10.1016/j.epsl.2020.116600
Wei, S. Q. S., Shearer, E. E., Lithgow-Bertelloni, C., Stixrude, L., & Tian, D. D. (2020). Oceanic plateau of the Hawaiian mantle plume head subducted to the uppermost lower mantle. Science, 370(6519), 983-+. https://doi.org/10.1126/science.abd0312
Fan, W. Y., McGuire, J. J., & Shearer, P. M. (2020). Abundant spontaneous and dynamically triggered submarine landslides in the Gulf of Mexico. Geophysical Research Letters, 47(12). https://doi.org/10.1029/2020gl087213
Schulte-Pelkum, V., Monsalve, G., Sheehan, A. F., Shearer, P., Wu, F., & Rajaure, S. (2019). Mantle earthquakes in the Himalayan collision zone. Geology, 47(9), 815–819. https://doi.org/10.1130/g46378.1
Shearer, P. M., & Buehler, J. (2019). Imaging upper-mantle structure under USArray using long-period reflection seismology. Journal of Geophysical Research-Solid Earth, 124(9), 9638–9652. https://doi.org/10.1029/2019jb017326
Ross, Z. E., Trugman, D. T., Hauksson, E., & Shearer, P. M. (2019). Searching for hidden earthquakes in Southern California. Science, 364(6442), 767-+. https://doi.org/10.1126/science.aaw6888
Shearer, P. M., Abercrombie, R. E., Trugman, D. T., & Wang, W. (2019). Comparing EGF methods for estimating corner frequency and stress drop from p wave spectra. Journal of Geophysical Research-Solid Earth, 124(4), 3966–3986. https://doi.org/10.1029/2018jb016957
Wang, W., & Shearer, P. M. (2019). An improved method to determine coda-Q, earthquake magnitude, and site amplification: Theory and application to Southern California. Journal of Geophysical Research-Solid Earth, 124(1), 578–598. https://doi.org/10.1029/2018jb015961
Koper, K. D., Pankow, K. L., Pechmann, J. C., Hale, J. M., Burlacu, R., Yeck, W. L., Benz, H. M., Herrmann, R. B., Trugman, D. T., & Shearer, P. M. (2018). Afterslip enhanced aftershock activity during the 2017 earthquake sequence near Sulphur Peak, Idaho. Geophysical Research Letters, 45(11), 5352–5361. https://doi.org/10.1029/2018gl078196
Buehler, J. S., Mancinelli, N. J., & Shearer, P. M. (2018). S-to-Rayleigh Wave Scattering From the Continental Margin Observed at USArray. Geophysical Research Letters, 45(10), 4719–4724. https://doi.org/10.1029/2017gl076812
Fan, W. Y., & Shearer, P. M. (2018). Coherent Seismic Arrivals in the P Wave Coda of the 2012 M(w)7.2 Sumatra Earthquake: Water Reverberations or an Early Aftershock? Journal of Geophysical Research-Solid Earth, 123(4), 3147–3159. https://doi.org/10.1002/2018jb015573
Trugman, D. T., & Shearer, P. M. (2018). Strong correlation between stress drop and peak ground acceleration for recent m 1-4 earthquakes in the San Francisco Bay Area. Bulletin of the Seismological Society of America, 108(2), 929–945. https://doi.org/10.1785/0120170245
Fan, W. Y., Bassett, D., Jiang, J. L., Shearer, P. M., & Ji, C. (2017). Rupture evolution of the 2006 Java tsunami earthquake and the possible role of splay faults. Tectonophysics, 721, 143–150. https://doi.org/10.1016/j.tecto.2017.10.003
Trugman, D. T., Dougherty, S. L., Cochran, E. S., & Shearer, P. M. (2017). Source spectral properties of small to moderate earthquakes in southern Kansas. Journal of Geophysical Research: Solid Earth, n/a-n/a. https://doi.org/10.1002/2017JB014649
Fan, W. Y., & Shearer, P. M. (2017). Investigation of Backprojection Uncertainties With M6 Earthquakes. Journal of Geophysical Research-Solid Earth, 122(10), 7966–7986. https://doi.org/10.1002/2017jb014495
Wang, W., & Shearer, P. M. (2017). Using direct and coda wave envelopes to resolve the scattering and intrinsic attenuation structure of Southern California. Journal of Geophysical Research-Solid Earth, 122(9), 7236–7251. https://doi.org/10.1002/2016jb013810
Wei, S. S., & Shearer, P. M. (2017). A sporadic low-velocity layer atop the 410 km discontinuity beneath the Pacific Ocean. Journal of Geophysical Research-Solid Earth, 122(7), 5144–5159. https://doi.org/10.1002/2017jb014100
Matoza, R. S., Green, D. N., Le Pichon, A., Shearer, P. M., Fee, D., Mialle, P., & Ceranna, L. (2017). Automated detection and cataloging of global explosive volcanism using the International Monitoring System infrasound network. Journal of Geophysical Research-Solid Earth, 122(4), 2946–2971. https://doi.org/10.1002/2016jb013356
Trugman, D. T., & Shearer, P. M. (2017). Application of an improved spectral decomposition method to examine earthquake source scaling in Southern California. Journal of Geophysical Research-Solid Earth, 122(4), 2890–2910. https://doi.org/10.1002/2017jb013971
Trugman, D. T., & Shearer, P. M. (2017). GrowClust: A hierarchical clustering algorithm for relative earthquake relocation, with application to the Spanish Springs and Sheldon, Nevada, earthquake sequences. Seismological Research Letters. https://doi.org/10.1785/0220160188
Buehler, J. S., & Shearer, P. M. (2017). Uppermost mantle seismic velocity structure beneath USArray. Journal of Geophysical Research-Solid Earth, 122(1), 436–448. https://doi.org/10.1002/2016jb013265
Buehler, J. S., & Shearer, P. M. (2016). Characterizing earthquake location uncertainty in North America using source-receiver reciprocity and USArray. Bulletin of the Seismological Society of America, 106(5), 2395–2401. https://doi.org/10.1785/0120150173
Denolle, M. A., & Shearer, P. M. (2016). New perspectives on self-similarity for shallow thrust earthquakes. Journal of Geophysical Research-Solid Earth, 121(9), 6533–6565. https://doi.org/10.1002/2016jb013105
Fan, W. Y., & Shearer, P. M. (2016). Local near instantaneously dynamically triggered aftershocks of large earthquakes. Science, 353(6304), 1133–1136. https://doi.org/10.1126/science.aag0013
Mancinelli, N., & Shearer, P. (2016). Scattered energy from a rough core-mantle boundary modeled by a Monte Carlo seismic particle method: Application to PKKP precursors. Geophysical Research Letters, 43(15), 7963–7972. https://doi.org/10.1002/2016gl070286
Fan, W. Y., Shearer, P. M., Ji, C., & Bassett, D. (2016). Multiple branching rupture of the 2009 Tonga-Samoa earthquake. Journal of Geophysical Research-Solid Earth, 121(8), 5809–5827. https://doi.org/10.1002/2016jb012945
Mai, P. M., Shearer, P., Ampuero, J. P., & Lay, T. (2016). Standards for documenting finite-fault earthquake rupture models. Seismological Research Letters, 87(3), 712-U292. https://doi.org/10.1785/0220150204
Zhang, Q., & Shearer, P. M. (2016). A new method to identify earthquake swarms applied to seismicity near the San Jacinto Fault, California. Geophysical Journal International, 205(2), 995–1005. https://doi.org/10.1093/gji/ggw073
Mancinelli, N., Shearer, P., & Liu, Q. Y. (2016). Constraints on the heterogeneity spectrum of Earth’s upper mantle. Journal of Geophysical Research-Solid Earth, 121(5), 3703–3721. https://doi.org/10.1002/2015jb012641
Mancinelli, N., Shearer, P., & Thomas, C. (2016). On the frequency dependence and spatial coherence of PKP precursor amplitudes. Journal of Geophysical Research-Solid Earth, 121(3), 1873–1889. https://doi.org/10.1002/2015jb012768
Fan, W. Y., & Shearer, P. M. (2016). Fault interactions and triggering during the 10 January 2012 M-w 7.2 Sumatra earthquake. Geophysical Research Letters, 43(5), 1934–1942. https://doi.org/10.1002/2016gl067785
Melgar, D., Fan, W. Y., Riquelme, S., Geng, J. H., Liang, C. R., Fuentes, M., Vargas, G., Allen, R. M., Shearer, P. M., & Fielding, E. J. (2016). Slip segmentation and slow rupture to the trench during the 2015, M(w)8.3 Illapel, Chile earthquake. Geophysical Research Letters, 43(3), 961–966. https://doi.org/10.1002/2015gl067369
Trugman, D. T., Shearer, P. M., Borsa, A. A., & Fialko, Y. (2016). A comparison of long-term changes in seismicity at The Geysers, Salton Sea, and Coso geothermal fields. Journal of Geophysical Research-Solid Earth, 121(1), 225–247. https://doi.org/10.1002/2015jb012510
Lin, G. Q., Amelung, F., Shearer, P. M., & Okubo, P. G. (2015). Location and size of the shallow magma reservoir beneath Klauea caldera, constraints from near-source V-p/V-s ratios. Geophysical Research Letters, 42(20), 8349–8357. https://doi.org/10.1002/2015gl065802
Matoza, R. S., Chouet, B. A., Dawson, P. B., Shearer, P. M., Haney, M. M., Waite, G. P., Moran, S. C., & Mikesell, T. D. (2015). Source mechanism of small long-period events at Mount St. Helens in July 2005 using template matching, phase-weighted stacking, and full-waveform inversion. Journal of Geophysical Research-Solid Earth, 120(9), 6351–6364. https://doi.org/10.1002/2015jb012279
Zhan, Z. W., & Shearer, P. M. (2015). Possible seasonality in large deep-focus earthquakes. Geophysical Research Letters, 42(18), 7366–7373. https://doi.org/10.1002/2015gl065088
Wang, W., & Shearer, P. M. (2015). No clear evidence for localized tidal periodicities in earthquakes in the central Japan region. Journal of Geophysical Research-Solid Earth, 120(9), 6317–6328. https://doi.org/10.1002/2015jb011937
Denolle, M. A., Fan, W. Y., & Shearer, P. M. (2015). Dynamics of the 2015 M7.8 Nepal earthquake. Geophysical Research Letters, 42(18), 7467–7475. https://doi.org/10.1002/2015gl065336
Buehler, J. S., & Shearer, P. M. (2015). T phase observations in global seismogram stacks. Geophysical Research Letters, 42(16), 6607–6613. https://doi.org/10.1002/2015gl064721
Goebel, T. H. W., Hauksson, E., Shearer, P. M., & Ampuero, J. P. (2015). Stress-drop heterogeneity within tectonically complex regions: a case study of San Gorgonio Pass, southern California. Geophysical Journal International, 202(1), 514–528. https://doi.org/10.1093/gji/ggv160
Fan, W. Y., & Shearer, P. M. (2015). Detailed rupture imaging of the 25 April 2015 Nepal earthquake using teleseismic P waves. Geophysical Research Letters, 42(14), 5744–5752. https://doi.org/10.1002/2015gl064587
Lin, G. Q., Shearer, P. M., Amelung, F., & Okubo, P. G. (2015). Seismic tomography of compressional wave attenuation structure for Klauea Volcano, Hawaii. Journal of Geophysical Research-Solid Earth, 120(4), 2510–2524. https://doi.org/10.1002/2014jb011594
Kaneko, Y., & Shearer, P. M. (2015). Variability of seismic source spectra, estimated stress drop, and radiated energy, derived fromcohesive-zonemodels of symmetrical and asymmetrical circular and elliptical ruptures. Journal of Geophysical Research-Solid Earth, 120(2), 1053–1079. https://doi.org/10.1002/2014jb011642