State of Stress and Strain in the Crust and Implications for Fault Slip Based on Observational, Numerical and Experimental Analysis
Date: 4/26/2019
Time: 1:30 PM to 5:00 PM
Room: Vashon
Understanding the stress and strain distributions in the crust and specifically near fault zones is essential towards refining knowledge on deformation processes, fault mechanics and earthquake source physics. This session focuses on (1) the estimation of the state of stress/strain and (2) the analysis of stress/strain distributions at different spatial and temporal scales by soliciting works based on theory, observational data, modeling and laboratory experiments. Contributions are encouraged but not limited to address the following questions: 1) How are stress and strain distributed in lab experiments and nature and how can we bridge the two environments? 2) What are insights from numerical simulations on stress state and to what extent can models help in interpreting observations such as earthquakes or slow slip events? 3) What can we extract from geodetic, geologic, borehole and seismic data regarding the state of stress at regional and local scales? 4) How can spatial stress/strain variations from long-term data compilations improve our knowledge of fault zone structure, earthquake mechanics, aseismic slip? 5) How can information on the state of stress/strain be used to improve seismic hazard assessments?
Conveners
Niloufar Abolfathian, University of Southern California (nabolfat@usc.edu)
Patricia Martínez-Garzón, GFZ Research Center for Geosciences (patricia@gfz-potsdam.de)
Thomas Goebel, University of California, Santa Cruz (tgoebel@ucsc.edu)
Oral Presentations
| Participant Role | Details | Start Time | Minutes | Action |
|---|---|---|---|---|
| Submission | Heterogeneity of Shallow Crustal Stress Estimated From Borehole Breakouts and Local Earthquake Focal Mechanism Inversions in the Los Angeles Basin | 01:30 PM | 15 | View |
| Submission | Influence of Coseismic and Postseismic Stress Induced by the 2011 M9.0 Tohoku-Oki Earthquake on Regional Medium Properties and Seismicity | 01:45 PM | 15 | View |
| Submission | Spectral and Temporal Evolution of Surface Creep Events in Parkfield, 1990-Present | 02:00 PM | 15 | View |
| Submission | Nonlinear Rheology of the Shallow Crust Inferred From Multi-Year Borehole Strain Time Series | 02:15 PM | 15 | View |
| Submission | Stress From Plate Bending in the Nankai Trough | 02:30 PM | 15 | View |
| Other Time | Posters and Break | 02:45 PM | 60 | |
| Submission | Post-Large Earthquake Seismic Activities Mediated by Aseismic Deformation Processes | 03:45 PM | 15 | View |
| Submission | Assimilating Stress and Strain in an Energy-Based PSHA Workflow | 04:00 PM | 15 | View |
| Submission | Spatial Variations of Stress Patterns Near the South Central Transverse Ranges in Southern California | 04:15 PM | 15 | View |
| Submission | [Withdrawn] Surface-Wave Induced Dynamic Stresses on Arbitrary Faults in a Layered Earth | 04:30 PM | 15 | View |
| Submission | Focal Mechanisms of Microseismicity in the San Jacinto Fault Zone Region of Southern California | 04:45 PM | 15 | View |
| Total: | 210 Minute(s) |
State of Stress and Strain in the Crust and Implications for Fault Slip Based on Observational, Numerical and Experimental Analysis
Description