Exciting news! We're transitioning to the Statewide California Earthquake Center. Our new website is under construction, but we'll continue using this website for SCEC business in the meantime. We're also archiving the Southern Center site to preserve its rich history. A new and improved platform is coming soon!
Sean K. Ahdi
USGS
Research Geophysicist
Expertise: Engineering seismological applications to earthquake/geotechnical engineering; seismic site and basin response; seismic site characterization using near-surface geophysical methods; effects of surface geology on ground motions
About Me
Publications
Ph.D., Civil Engineering, UCLA, 2018
Ahdi, S. K., Aagaard, B. T., Moschetti, M. P., Boyd, O. S., Parker, G. A., & Stephenson, W. J. (2023, 09). Empirical Assessment of Site and Basin Response in the Pacific Northwest via Testing Site-Response Models for Different Tectonic Regimes. Poster Presentation at 2023 SCEC Annual Meeting. SCEC Contribution 13238
Ahdi, S. K., Moschetti, M. P., Aagaard, B. T., Boyd, O. S., Parker, G. A., & Stephenson, W. J. (2022, 09). Assessment of Western U.S. Empirical Basin Response for the 2023 Update of the National Seismic Hazard Model . Poster Presentation at 2022 SCEC Annual Meeting. SCEC Contribution 12483
Stewart, J. P., Brandenberg, S. J., Wang, P., Nweke, C., Hudson, K. S., Mazzoni, S., Bozorgnia, Y., Hudnut, K. W., Davis, C. A., Ahdi, S. K., Zareian, F., Fayaz, J., Koehler, R. D., Chupik, C., Pierce, I., Williams, A., Akciz, S. O., Hudson, M. B., Kishida, T., Brooks, B. A., Gold, R. D., Ponti, D. J., Scharer, K. M., McPhillips, D., Ericksen, T., Hernandez, J., Patton, J. R., Olson, B., Dawson, T., Treiman, J. A., DuRoss, C. B., Blake, K., Bachhuber, J. L., Madugo, C. M., Sun, J., Donnellan, A., Lyzenga, G. A., Conway, E. M., & Goulet, C. A. (2019, 08). Engineering and Geological Effects of the July 2019 Ridgecrest Earthquake Sequence. Poster Presentation at 2019 SCEC Annual Meeting. SCEC Contribution 9907
Mazzoni, S., Kashida, T., Wang, P., Ahdi, S. K., Bozorgnia, Y., & Stewart, J. P. (2019, 08). Strong Ground Motions from 2019 Ridgecrest Earthquake Sequence Mainshocks. Poster Presentation at 2019 SCEC Annual Meeting. SCEC Contribution 9774
Ahdi, S. K., Sadiq, S., Ilhan, O., Bozorgnia, Y., Hashash, Y., Kwak, D., Park, D., Yong, A., & Stewart, J. P. (2018, 08). A Proposed Seismic Velocity Profile Database Model. Poster Presentation at 2018 SCEC Annual Meeting. SCEC Contribution 8386
Petersen, M. D., Shumway, A. M., Powers, P. M., Field, E. H., Moschetti, M. P., Jaiswal, K. S., Milner, K. R., Rezaeian, S., Frankel, A., Llenos, A. L., Michael, A. J., Altekruse, J., Ahdi, S. K., Withers, K. B., Mueller, C. S., Zeng, Y., Chase, R., Salditch, L., Luco, N., Rukstales, K. S., Herrick, J. A., Girot, D. L., Aagaard, B. T., Bender, A. M., Blanpied, M. L., Briggs, R., Boyd, O. S., Clayton, B. S., DuRoss, C. B., Evans, E. L., Haeussler, P., Hatem, A., Haynie, K. L., Hearn, E. H., Johnson, K. M., Kortum, Z. A., Kwong, N. S., Makdisi, A. J., Mason, B., McNamara, D., McPhillips, D., Okubo, P., Page, M. T., Pollitz, F. F., Rubinstein, J. L., Shaw, B. E., Shen, Z., Shiro, B., Smith, J. A., Stephenson, W. J., Thompson, E. M., Thompson Jobe, J. A., Wirth, E., & Witter, R. C. (2023). The 2023 US 50-State National Seismic Hazard Model: Overview and implications. Earthquake Spectra,. doi: 10.1177/87552930231215428. SCEC Contribution 13391
Goulet, C. A., Wang, Y., Nweke, C. C., Tang, B., Wang, P., Hudson, K. S., Ahdi, S. K., Meng, X., Hudson, M. B., Donnellan, A., Lyzenga, G. A., Brandenberg, S. J., Stewart, J. P., Gallien, T., & Winters, M. A. (2021). Comparison of Near-Fault Displacement Interpretations from Field and Aerial Data for the M 6.5 and 7.1 Ridgecrest Earthquake Sequence Ruptures. Bulletin of the Seismological Society of America,. doi: 10.1785/0120200222. SCEC Contribution 11108
Goulet, C. A., Wang, Y., Nweke, C. C., Tang, B., Wang, P., Hudson, K. S., Ahdi, S. K., Meng, X., Hudson, M. B., Donnellan, A., Lyzenga, G. A., Brandenberg, S. J., Stewart, J. P., Gallien, T., & Winters, M. A. (2021). Comparison of Near‐Fault Displacement Interpretations from Field and Aerial Data for the M 6.5 and 7.1 Ridgecrest Earthquake Sequence Ruptures. Bulletin of the Seismological Society of America, 111(5), 2317-2333. doi: 10.1785/0120200222. SCEC Contribution 10180
Ahdi, S. K., Mazzoni, S., Kishida, T., Wang, P., Nweke, C., Kuehn, N. M., Contreras, V., Rowshandel, B., Stewart, J. P., & Bozorgnia, Y. (2020). Engineering Characteristics of Ground Motions Recorded in the 2019 Ridgecrest Earthquake Sequence. Bulletin of the Seismological Society of America, 110(4), 1474-1494. doi: 10.1785/0120200036. SCEC Contribution 10820
Zimmaro, P., Nweke, C. C., Hernandez, J. L., Hudson, K. S., Hudson, M. B., Ahdi, S. K., Boggs, M. L., Davis, C. A., Goulet, C. A., Brandenberg, S. J., Hudnut, K. W., & Stewart, J. P. (2020). Liquefaction and Related Ground Failure from July 2019 Ridgecrest Earthquake Sequence. Bulletin of the Seismological Society of America, 110(4), 1549-1566. doi: 10.1785/0120200025. SCEC Contribution 10179
Brandenberg, S. J., Wang, J., Buckreis, T., Issa, O., Yeung, J., Lyda, A., Gallien, T. W., Kim, Y., Lucey, J., Delisle, M., Winters, M. A., Pierce, M., Stewart, J. P., Lyzenga, G., Donnellan, A., Hudson, M. B., Ahdi, S. K., Davis, C. A., Meng, X., Goulet, C. A., Hudson, K., Nweke, C. C., Wang, P., & Yi, Z. (2020). Ground Deformation Data from GEER Investigations of Ridgecrest Earthquake Sequence. Seismological Research Letters, 91(4), 2024-2034. doi: 10.1785/0220190291. SCEC Contribution 10113
Stewart, J. P., Brandenberg, S. J., Wang, P., Nweke, C., Hudson, K. S., Mazzoni, S., Bozorgnia, Y., Goulet, C. A., Hudnut, K. W., Davis, C. A., Ahdi, S. K., Zareian, F., Fayaz, J., Koehler, R. D., Chupik, C., Pierce, I., Williams, A. M., Akciz, S. O., Hudson, M. B., & Kishida, T. (2019). Preliminary report on engineering and geological effects of the July 2019 Ridgecrest earthquake sequence. Geotechnical Extreme Event Reconnaissance Association, 1-69. doi: 10.18118/G6H66K. SCEC Contribution 10141
Last updated Apr 02, 2024.
