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

Conveners: Brittany Erickson, Valere Lambert, and Junle Jiang
Dates: November 18, 2022
Location: Online via Zoom
SCEC Award and Report: 22123

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 discuss developing community activities revolving around and of interest to SEAS modeling efforts and to compare results from our most recent benchmark problems BP6 and BP7, which focus on fluid and 3D effects, respectively, as well as different treatments of fault friction. We will also discuss research targets and plans for SEAS in the near and longer term for the group.

Presentation videos and slides may be viewed by clicking the links following the title. PLEASE NOTE: Files are the author’s property. They may contain unpublished or preliminary information and should only be used while viewing the talk.

FRIDAY, NOVEMBER 18, 2022

  Session 1: Workshop Goals and Introductions
Moderator: Valere Lambert		  
08:30 - 08:45 Introductions, Workshop Goals, and Science Targets Valere Lambert
  Session 2: Community Modeling Activities 
Moderators: Brittany Erickson and Junle Jiang		  
08:45 - 09:00 Modeling Collaboratory for Subduction (PDF, 359KB) Eric Dunham
09:00 - 09:15 Modeling and Verification of Volcanic Systems Leif Karlstrom
09:15 - 09:30 SCEC Seismic Hazard Analysis Platforms (PDF, 4.5MB) Kevin Milner
09:30 - 09:45 Computational Infrastructure for Geodynamics Seismic Cycles Group Sylvain Barbot
09:45 - 10:00 Discussion All
10:00 - 10:30 Break  
  Session 3: Comparison of New Benchmark Results
Moderator: Valere Lambert		  
10:30 - 12:00 Discussion of Benchmark Results from BP6 and BP7 All
  Session 4: Future Directions for SEAS
Moderators: Brittany Erickson, Junle Jiang, and Valere Lambert		  
12:00 - 12:30 Group Planning for 2023 All
12:30 Adjourn  

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PARTICIPANTS

Mohamed Abdelmeguid (UIUC)
Martin Almquist (Uppsala U)
Jean-Paul (Pablo) Ampuero (Université Côte d'Azur)
Laura Bagur (ENS)
Michael Barall (USGS)
Sylvain Barbot (USC)
Segun Bodunde (U Oklahoma)
Camilla Cattania (MIT)
Jinhui Cheng (ENS)
Judi Chester (TAMU)
Ben Duan (TAMU)
Eric Dunham (Stanford)
Brittany Erickson (U Oregon)
Ruth Harris (USGS)
Yihe Huang (Michigan)
Junle Jiang (U Oklahoma)
Leif Karlstrom (U Oregon)
Taeho Kim (Caltech)
Christos Kyriakopoulos (U Memphis)
Valère Lambert (UCSC)
Nadia Lapusta (Caltech)
Meng Li (Utrecht)
Dunyu Liu (UT Austin)
Yajing Liu (McGill)
Amy Lu (McGill)
Shuo Ma (SDSU)
Phil Maechling (SCEC/USC)
Kevin Milner (USC)
So Ozawa (U Tokyo)
Edric Pauk (USC)
Andrea Perez (Victoria)
Paul Segall (Stanford)
Victor Vescu (Caltech)
Jiayi Ye (ETH Zurich)
Jeena Yun
Peng Zhai (U. Michigan)
Wenqiang Zhang (McGill)