Room: Exhibit Hall
Date: 5/1/2024
Session Time: 8:00 AM to 5:45 PM (local time)
The USGS National Seismic Hazard Models (NSHMs) are a bridge between best-available earthquake science and public policy. The National Seismic Hazard Model Project (NSHMP) recently published a 50-state update that provided updates to the conterminous U.S., Alaska and Hawaii NSHMs. The USGS plans to update the Puerto Rico and U.S. Virgin Islands (PRVI) NSHM by the end of 2025 and the Guam and Northern Mariana Islands and American Samoa and Neighboring South Pacific Islands NSHMs by the end of 2026. For this session we will present the 2023 NSHMs for Alaska and the conterminous U.S. and progress on the update of the 2025 PRVI NSHM and invite contributions on topics that will influence future seismic hazard models, with an emphasis on Alaska. Topics include, but are not limited to: seismicity catalogs, declustering and smoothed seismicity models, geologic and geodetic deformation models, multi-fault ruptures, improved representation and quantification of epistemic uncertainty, new ground motion models (GMMs), including non-ergodic models, incorporation of physics-based (3D simulation) GMMs, basin effects, site response, directivity and time dependence. We also invite contributions on the use of NSHMs for scenario development, risk assessment for both buildings and infrastructure and other applications of risk mitigation including those within the insurance industry. We are also interested in contributions that highlight potential impacts of hazard modeling uncertainties on downstream applications.
Conveners:
Jason M. Altekruse, U.S. Geological Survey (jaltekruse@usgs.gov)
Julie A. Herrick, U.S. Geological Survey (jherrick@usgs.gov)
Mark D. Petersen, U.S. Geological Survey (mpetersen@usgs.gov)
Peter M. Powers, U.S. Geological Survey (pmpowers@usgs.gov)
Emel Seyhan, Moody's RMS (Emel.Seyhan@rms.com)
Allison M. Shumway, U.S. Geological Survey (ashumway@usgs.gov)
Poster Presentations
| Participant Role | Details | Action |
|---|---|---|
| Submission | Deploying the USGS National Seismic Hazard Models | View |
| Submission | USGS Earthquake Hazard Toolbox | View |
| Submission | The 2023 Alaska National Seismic Hazard Model: Hazard Implications | View |
| Submission | The 2023 Alaska National Seismic Hazard Model: Inputs and Implications | View |
| Submission | A Fault-Based Crustal Deformation Model With Buried Dislocation Sources for Slip-Rate Inversion of the Alaska Faults | View |
| Submission | Why Seismic Hazard Models Appear to Overpredict Historical Shaking Observations: An Intensely Simple Answer | View |
| Submission | Hybrid Empirical Ground-Motion Models for the Island of Hawaii Based on an Updated Strong Ground Motion Database | View |
| Submission | Implementing Rupture Directivity Effects Into PSHA | View |
| Submission | Methods to Evaluate and Improve the Modeling of Rupture Directivity in Assessment of Seismic Hazard | View |
| Submission | Conterminous U.S. Site Parameter Maps for Ground Motion Models | View |
| Submission | Empirical Models for Fourier Amplitude Spectrum of Ground-Motion Calibrated on Data From the Iranian Plateau | View |
| Submission | Recurrence Model for Puerto Rico Subduction Zone Interface and Muertos Thrust Belt Earthquakes | View |
| Submission | Gridded Seismicity Models for the 2025 USGS National Seismic Hazard Model for Puerto Rico and the U.S. Virgin Islands | View |
| Submission | Seismic Hazard, Lithosphere Hydration, and Double-Verging Structure of the Puerto Rico Subduction Zone: A Seismic Reflection and Refraction Perspective | View |
| Submission | A New Seismic Reflection Study for Southwestern Puerto Rico Fault Characterization | View |
| Submission | A Seismological Method for Estimating the Long-Period Transition Period Tl in the Seismic Building Code | View |
The 2023 USGS National Seismic Hazard Model and Beyond [Poster Session]
Description