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SCEC Workshop on Advancing Simulations of Sequences of Earthquakes and Aseismic Slip

Conveners: Brittany Erickson and Junle Jiang
Date/Time:  Friday, October 30, 2020 (09:00-12:30 Pacific Time or UTC-7)
SCEC Award and Report: 20120

SUMMARY:  Our group ​is working to advance ​computational methods for simulating Sequences of Earthquakes and Aseismic Slip (SEAS) by conducting a suite of code verification exercises. ​In SEAS models, the goal is to capture the interplay of aseismic fault slip—that ultimately lead to earthquake nucleation—and dynamic earthquake ruptures themselves, in an effort to understand which physical factors control the full range of observables such as aseismic deformation, earthquake initiation locations, ground shaking during dynamic rupture, recurrence times and magnitudes of earthquakes.

The goal of this workshop is to share some recent progress in SEAS modeling and discuss the results of two new code verification benchmarks, BP3 and BP5, which focus on the effects of fault geometry and free surface in quasidynamic 2D and 3D problems, respectively. We will also discuss our future benchmark efforts, for example, to explore the effects of heterogeneous friction and fluids, and plan for group publications to promote our results to the broader community.

Due to the ongoing COVID-19 pandemic, this workshop will be held as a Zoom meeting on October 30, 2020. The program will consist of a few presentations, with ample time for Q&A and discussion. To promote active discussions, the workshop is limited to 50 participants and by invitation only.

Please note that all times listed are Pacific Time or UTC-7.

09:00 - 09:10 Workshop Goals (Brittany Erickson)  
09:10 - 10:00 Session 1: Introduction to SEAS Group & Welcome New Participants
ModeratorTran Huynh
Everyone is invited to introduce themselves and/or their (group’s) research in a lightning talk (1-2 slides).
Tell us about your interest in SEAS activities and what you’d like to get out of the workshop.
10:00 - 10:15 Break  
10:15 - 11:00 Session 2: Benchmark BP3 (quasidynamic 2D problem)
Moderator: Brittany Erickson
Review Benchmark Results
Group Discussion
11:00 - 11:45 Session 3: Benchmark BP5 (quasidynamic 3D problem)
ModeratorJunle Jiang
Review Benchmark Results
Group Discussion
11:45 - 12:30 Session 4: Future Directions for SEAS
Moderator: Brittany Erickson and Junle Jiang
Earthquake complexity, Simulators, and SEAS (Bruce Shaw)
Group Planning for 2021 and Beyond
12:30 Adjourn  

Workshop Participants

The Southern California Earthquake Center is committed to providing a safe, productive, and welcoming environment for all participants. We take pride in fostering a diverse and inclusive SCEC community, and therefore expect all participants to abide by the SCEC Activities Code of Conduct SCEC Activities Code of Conduct.