Slide Decks
2026
- Exploring Rupture Directivity Effects on Significant Duration, Cumulative Absolute Velocity, and Arias Intensity. Presented at the 13th U.S. National Conference on Earthquake Engineering (13NCEE), 13-17 July, 2026, Portland, Oregon. PDF
- Modeling Hanging Wall Effects for Ground Motion Fourier Amplitude Spectra. Presented at the Seismological Society of America Annual Meeting, 14-18 April, 2026, Pasadena, California. PDF
2025
- An Introduction to the LA Seismology Team & Seismic Hazard Briefing. Presented to AECOM Melbourne, 19 November, 2025. PDF
- Are ground motions in Australia different between cratonic and non-cratonic regions, and different from global models? Presented at the Australian Earthquake Engineering Society National Conference, 20-22 November, 2025. PDF
2024
- An Updated Ground Motion Model for Australia Developed Using Broadband Ground Motion Simulations. Presented at the Australian Earthquake Engineering Society National Conference, 22-23 November, 2024. PDF
2023
- Updates to the Somerville et al. (2009) Ground Motion Model for Australia Using Broadband Ground Motion Simulations. Presented at the Australian Earthquake Engineering Society National Conference, 23-25 November, 2023. PDF
- Modeling Fourier Amplitude Spectra of Earthquake Ground Motions, Presented to the Korea Institute of Geoscience and Mineral Resources, Geosciences Department. September 21, 2023, Daejeon, South Korea. PDF
- Methods for Earthquake Ground Motions in Practice: (1) Implementing rupture directivity in seismic hazard (2) Time histories with permanent displacement. Presented to Korea Hydro & Nuclear Power Co., Ltd. (KHNP). September 19, 2023, Daejeon, South Korea. PDF
- A method for generating spectrum-compatible earthquake ground motion time histories with permanent displacement, Presented at the USSD Annual Conference, April 19, 2023, Charleston, South Carolina. PDF
2022
- Evaluation of the inter-frequency correlation of CyberShake NZ crustal eqk simulations. Presented to QuakeCoRE, January 26, 2022. PDF
2021
- Site amplification methods for GMSV. Presented to the SCEC GMSV Mini-Workshop, August 24, 2021. PDF
- Significance and Validation of the Inter-Period Correlation of Simulations. Presented at the PEER International Pacific Rim Forum, June 17, 2021. PDF
2020
- Region-Specific Fourier-Based Site Amplification Modeling. Presented to the SCEC GMSV Tag, June 17, 2020. PDF
- 2020 Update to the Bayless and Somerville (2013) Directivity Model. Presented to the Directivity Working Group, June 16, 2020. PDF
2019
- Introduction to Return Periods. April 1, 2019. PDF
- Sensitivity of Ground Motions to Source Models of a Mw 8.6 Hikurangi Mega-thrust Earthquake. Presented at the Seismological Society of America Annual Meeting, April 23, 2019, Seattle, WA. PDF
2018
- Implications of the inter-period correlation of simulated ground motions on structural risk. Presented at the 11th National Conference on Earthquake Engineering, June 25, 2018, Los Angeles, CA. PDF
- Inter-period correlations of ground-motions: modeling, calibration of earthquake simulations, and significance in seismic risk. UC Davis PhD Exit Seminar, October 18, 2018, . PDF
- Probabilistic Fault Displacement Hazard Analysis. Presented at the 2018 AECOM Seismology Seminar, September 19, 2018. PDF
2017
- Dynamic and Kinematic Modeling of Branch Faulting. Funded by SCEC and Presented to QuakeCoRE via Webinar, June 21, 2017. PDF
2016
- Validation of Strong Ground Motion Simulations of Two Historical New Zealand Subduction Zone Earthquakes on the SCEC BBP. Presented to QuakeCoRE, August 30, 2016. PDF
2015
- Plans for validations using newly-implemented ground motion parameters. Presented to the SCEC GMSV Working Group, September 11, 2015. PDF.
2014
- Summary of SCEC Broadband Platform Finite Fault Simulations: used to develop M scaling relationships of FAS. Presented at the NGA-East SSHAC Workshop 3A, October 30, 2014. PDF
- Constraining GMPEs in Critical Ranges for Complex Ruptures Using Strong Motion Simulation Procedures on the SCEC Broadband Platform, Presented at the Seismological Society of America Annual Meeting, April 30, 2014, Anchorage, AK. PDF
- Results of the new set of forward finite-fault simulations to address splay ruptures. Presented at the Southwestern US (SWUS) Ground Motion Characterization SSHAC Level 3 Workshop, March 10, 2014. PDF
Pre-2014
- Directivity models produced for the Next Generation Attenuation-West2 (NGA-West2) project. Presented at the 15th World Conference on Earthquake Engineering, September 24, 2012, Lisbon, Portugal. PDF
- Validation of Finite Fault Simulations for NGA-East Using the SCEC Broadband Platform. Presented at the PEER NGA-East Workshop, March 7, 2012. PDF
Posters
2024
- A Rupture Directivity Modeling and its Application in Seismic Hazard. Presented at the SSA Annual Meeting, May 1, 2024, Anchorage, Alaska. PDF
2023
- Informing Rupture Directivity Modeling with SCEC CyberShake Simulations. Presented at the SCEC Annual Meeting, September 2023. PDF
2022
- Fourier-Based Site Response of Southern California Sedimentary Basins. Presented at the SCEC Annual Meeting, September 2022. PDF
2021
- Regional Attenuation Models in Central and Eastern North America using the NGA-East Database. Presented at the 17WCEE, September 2021. PDF
2020
- Region-Specific Fourier-Based Site Amplification Modeling. Presented at the SCEC Annual Meeting, September 14, 2020. PDF
2019
- An Empirical Model for the Inter-Frequency Correlation of Epsilon for Fourier Amplitude Spectra. Presented at the SSA Annual Meeting, April 23, 2019, Seattle WA. PDF
2018
- Implementing inter-period correlations into SCEC Broadband Platform simulations. Presented at the SCEC Annual Meeting, September 10, 2018, Palm Springs CA. PDF
- An Empirical Model for Fourier Amplitude Spectra Using the NGA-West2 Database. Presented at the SSA Annual Meeting, May 14, 2018, Miami FL. PDF
2017
- Implications of the inter-period correlation of simulated strong ground motions on structural risk. Presented at the SSA Annual Meeting, April 18, 2017, Denver CO. PDF
Pre-2017
- Inter-Period Correlations of SCEC Broadband Platform Fourier Amplitudes and Response Spectra. Presented at the SCEC Annual Meeting, September 10, 2016, Palm Springs CA. PDF
- The impact of uncertainty in Magnitude-Area scaling relations on SCEC BBP Simulations. Presented at the SSA Annual Meeting, April 20, 2016, Reno NV. PDF
- The impact of uncertainty in Magnitude-Area scaling relations on SCEC BBP Simulations. Presented at the SCEC Annual Meeting, September 10, 2015, Palm Springs CA. PDF
- SCEC Broadband Platform Simulations for the PEER NGA-East Project. Presented at the SSA Annual Meeting, April 21, 2015, Pasadena CA. PDF
- Constraining GMPEs in Critical Ranges for Complex Ruptures using Simulations on the SCEC BBP. Presented at the 2nd European Conference on Earthquake Engineering and Seismology, Istanbul, Turkey, Aug 25-29, 2014. PDF
- Behavior of Multiple Simulation Techniques on the SCEC Broadband Platform. Presented at the SCEC Annual Meeting, September 10, 2013, Palm Springs CA. PDF
Misc
- (Video Presentation) Significance and Validation of the Inter-Period Correlation of Simulations. Presented at the PEER International Pacific Rim Forum, June 17, 2021. Video Link
- (Video Presentation) Update to the Bayless and Somerville (2013) Directivity Model. Presented at the SSA Annual Meeting, March 2021. Video Link