2025 SCEC Dynamic Rupture Workshop

better understanding how fault-friction works, based on inferences from the lab and inferences from the field

Date: December 2, 2025
Location: Online via Zoom
Workshop Organizers: Ruth Harris (USGS), Michael Barall (USGS)
SCEC Award: 25347

Registration Deadline: November 26, 2025

Overview

Dynamic rupture simulations are useful tools to help us better understand how earthquakes work and how they generate ground motions. Nowadays dynamic earthquake rupture codes are used by dozens of researchers around the world to increase our knowledge about earthquakes which occurred in the past, and to create scenarios of earthquakes of the future. Dynamic rupture simulations are the sister computations of their more commonly used counterparts, kinematic rupture simulations, but dynamic rupture simulations are more complex and need more assumptions about rock properties and the physics of faulting. Included in these assumptions is fault-friction behavior. In our group’s workshops in the early-2020’s, we learned about each of the four ingredients for dynamic rupture simulations, including a January 2020 fault-friction workshop, but it is clear that we still have much to learn, and in the past 4-5 years there have been even more developments about this topic. In our 2025 workshop we plan to return to the fault-friction theme, to learn about the state of the science and how we should implement it in our simulations.

We welcome individuals involved in dynamic rupture simulations of earthquakes, and from anyone working on coseismic fault friction concepts based on field, laboratory and computational rock mechanics. We especially encourage participation from students, postdocs, and other early career scientists.

December 2, 2025

All times are Pacific Standard Time (UTC-8). 

TimeDescriptionPresenter
09:00 - 09:20IntroductionRuth Harris
09:25 - 10:0035-minute Overview Talk, including Q&AMonica Barbery
10:05 - 10:2015-minute Talk, including Q&AAlexis Ault
10:25 - 10:4015-minute Talk, including Q&AEric Burdette
10:45 - 11:00Lightning Talks on New Science Ideas (videos) 1-slide, 100-seconds
11:05 - 11:20Break
11:25 - 11:4015-minute Talk, including Q&AJun Young Song
11:45 - 12:0015-minute Talk, including Q&AYuval Tal
12:05 - 12:2015-minute Talk, including Q&AEric Ferre
12:25 - 13:00Break
13:05 - 13:2015-minute Talk, including Q&ASara Beth Cebry
13:25 - 13:40Evolution of fault strength in granite under hydrothermal conditionsTamara Jeppson
13:45 - 14:00Group DiscussionAll
14:05 - 14:20Lightning Talks on New Science Ideas (videos) 1-slide, 100-seconds
14:20 - 14:40Break
Updates from CRESCENT and from SEAS and Stress Drop Validation
14:40 - 14:553D fully coupled earthquake dynamic rupture and tsunami benchmarks with varying bathymetric complexityFabian Kutschera
15:00 - 15:07SEAS TAGTAG leader - Valere Lambert
15:12 - 15:19Stress Drop TAGTAG leader - Rachel Abercrombie/Annemarie Baltay
15:24 - 16:00Group Discussion: Planning Our Next StepsAll

SCEC-USGS Dynamic Rupture Verification Group

This SCEC-USGS group is an international collaboration that focuses on verifying computer codes used to simulate earthquakes as spontaneous dynamic ruptures. While the ultimate goal is model validation, we are currently using benchmarks to test for consistency of results under the same assumptions.

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SCEC Activities Code of Conduct

The Statewide California Earthquake Center (SCEC) fosters a diverse and inclusive community where everyone feels safe, productive, and welcome. We expect all participants in SCEC-supported events to uphold this commitment by adhering to the SCEC Activities Code of Conduct.

SCEC Meetings and Workshops

The SCEC Annual Meeting brings together 400-500 participants worldwide to share breakthroughs, assess progress, and chart a collaborative path for earthquake science. All of the Center activities are presented, analyzed, and woven into a set of priorities for SCEC to pursue in the future.

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