Crustal Stress and Strain and Implications for Fault Interaction and Slip
During earthquake cycles, crustal deformation includes multiple components such as inelastic strain increments associated with earthquakes, elastic strain accumulated in the interseismic period, aseismic slip on some fault sections and viscoelastic strain near and below the brittle-ductile transition depth. Resolving stress and strain distributions in the crust, specifically near fault zones, is essential for a better understanding of deformation processes, fault interactions and providing constraints on fault zone geometry and rheology.
This session focuses on (1) the estimation of the state of stress/strain in different phases of earthquake cycle and (2) the analysis of stress/strain distributions at different spatial and temporal scales by soliciting works based on theory, observations, modeling and laboratory experiments. Contributions are encouraged but not limited to address the following questions:
1) What can we extract from geodetic, geologic, borehole and seismic data regarding the state of stress and strain at regional and local scales?
2) How are stress and strain distributed in laboratory experiments and nature and how can we bridge the two?
3) What are the insights from numerical simulations on the state of stress and to what extent can models help in interpreting observations such as earthquakes or slow slip events?
4) How will spatial stress/strain variations from long-term data compilations improve our knowledge of the motion partitioning across complex fault zone areas, aseismic slip, fault zone structure and earthquake cycles?
5) How can information on the state of stress/strain be used to improve long-term earthquake forecasting and seismic hazard assessments?
Conveners
Niloufar Abolfathian, University of Southern California (niloufar.abolfathian@gmail.com); Thomas H. W. Goebel, University of Memphis (thgoebel@memphis.edu); Mong-Han Huang, University of Maryland (mhhuang@umd.edu)
Oral Presentations
| Participant Role | Details | Start Time | Minutes | Action |
|---|---|---|---|---|
| Submission | Earthquake Nucleation and Global Induced Stress Field by Precedent Large Earthquakes Since 1900 | 08:30 AM | 15 | View |
| Submission | Variations of Stress Parameters in the Southern California Plate Boundary Around the South Central Transverse Ranges | 08:45 AM | 15 | View |
| Submission | What Controls Variations in Aftershock Productivity? | 09:00 AM | 15 | View |
| Submission | Combining Seismological Inferences to Constrain Physical Conditions Surrounding the Low Stress, Low Heat Operation of Mature Faults | 09:15 AM | 15 | View |
| Submission | Synthetic Seismicity in New Zealand | 09:30 AM | 15 | View |
| Other Time | Break | 09:45 AM | 60 | |
| Submission | Scales of Stress Heterogeneity Near Active Faults in the Santa Barbara Channel, Southern California | 10:45 AM | 15 | View |
| Submission | Complexity Breeds Complexity: Heterogeneous Stress State Around the Southern Big Bend of the Southern San Andreas Fault, California | 11:00 AM | 15 | View |
| Submission | Antithetic Surface Deformation on Nearby Faults from the Ridgecrest Earthquakes: Compliant Faults Zones or Triggered Slip? | 11:15 AM | 15 | View |
| Submission | Complex Dynamics of Seismic Bursts in Southern California: Is Radial Localization a Signature of Increasing Regional Tectonic Stress? | 11:30 AM | 15 | View |
| Submission | Estimation of Time-Dependent Strain-Rates with Gaussian Process Regression | 11:45 AM | 15 | View |
| Total: | 210 Minute(s) |
Crustal Stress and Strain and Implications for Fault Interaction and Slip
Description