Room: Exhibit Hall
Date: 4/16/2025
Session Time: 8:00 AM to 5:45 PM (local time)
Advances in Reliable Earthquake Source Parameter Estimation
Reliable characterization of earthquake sources is fundamental to ground motion modeling, rupture simulation and statistical analyses. Estimates of earthquake source parameters such as location, magnitude, stress drop, and - for small and moderate earthquakes - their moment tensor components are used to describe and understand earthquake ruptures. Larger earthquakes may require a finite fault model to describe their source processes. Different procedures used in the estimation of source parameters may introduce variability in source, site, and path characterization intrinsic to the method used. These issues increase with the complexity of ruptures and require inversions with uncertainties that are difficult to quantify. The resulting artifacts may mask physical trends and lead to contradictory interpretations of earthquake scaling relationships and rupture processes. We encourage studies that aim to improve the reliability of earthquake source characterization, including ones that quantify the uncertainties of standard measurements, compare multiple methods or different datasets, and propose improved approaches to characterize complex sources and ruptures.
Conveners
Oliver S. Boyd, U.S. Geological Survey (olboyd@usgs.gov)
Tom Garth, International Seismological Centre (tom.garth@isc.ac.uk)
Keith McLaughlin, Leidos (mclaughlin0kl@gmail.com)
Colin Pennington, Lawrence Livermore National Lab (pennington6@llnl.gov)
Thanh-Son Pham, Australian National University (ThanhSon.Pham@anu.edu.au)
Natalia Poiata, International Seismological Centre (Natalia.Poiata@isc.ac.uk)
Adam Ringler, U.S. Geological Survey (aringler@usgs.gov)
Boris Rösler, Ensenada Center for Scientific Research and Higher Education (boris@cicese.mx)
William L. Yeck, U.S. Geological Survey (wyeck@usgs.gov)
Clara Yoon, U.S. Geological Survey (cyoon@usgs.gov)
Poster Presentations
| Participant Role | Details | Action |
|---|---|---|
| Submission | Earthquake Energy Calculations From Seismogeodetic Data | View |
| Submission | Evaluating Scaling Relationships From Reliable, Insar-derived Earthquake Source Parameters | View |
| Submission | Update and Future Plans for the International SCEC/USGS Community Stress Drop Validation Study | View |
| Submission | Refining Stress Drop Measurements Using Spectral Asymptotes: Insights From the Ridgecrest Sequence | View |
| Submission | Using a High- to Low-frequency Spectral Ratio to Distinguish Variations in Earthquake Source Properties | View |
| Submission | WITHDRAWN Upper Plate Control on Earthquake Stress Drop: Comparison Between High and Low Ground Velocity Zones in Costa Rica | View |
| Submission | Regionalized Earthquake Source Models of Subduction Interface Earthquakes | View |
| Submission | Source Characterization of Complex Earthquakes via Subevent Decomposition: Application to Apparent-repeating Earthquakes | View |
| Submission | Quantitatively Assessing the Importance of Three-dimensional Structure for Finite Fault Inversions | View |
| Submission | WITHDRAWN Kinematic Slip Model of the Mw7.0 December 5, 2024 Offshore Cape Mendocino Earthquake | View |
| Submission | Robust Earthquake Location Using Random Sample Consensus (RANSAC) | View |
| Submission | Joined Double Difference Earthquake Location and Estimation of Vp/Vs-Ratio from Earthquake Clusters | View |
| Submission | Mb Magnitude Station-station Spatial Correlations and Station Mb Biases | View |
| Submission | Focal Mechanism and Uncertainty Estimation in Data-sparse Settings | View |
| Submission | Micro-EQpolarity: Transfer Learning for Microseismic P-wave First-motion Polarity Determination and Its Application in the Western Canada Sedimentary Basin (WCSB) | View |
| Submission | The Influence of 3D Velocity Models on Seismic Moment Tensor Estimation in Alaska | View |
| Submission | Earthquake Source Spectra Estimates Vary Widely for Two Ridgecrest, California, Aftershocks Because of Differences in Attenuation Corrections | View |
| Submission | The International Seismological Centre (ISC) Earthquake Toolbox for MATLAB: Interactive Access to Earthquake Observations and Parameters | View |
| Submission | Source and Along-path Seismic Parameters of S-waves From Earthquakes in the Central-northern Gulf of California, Mexico | View |
Advances in Reliable Earthquake Source Parameter Estimation [Poster]
Description