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Tuesday, November 18, 2025
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The SCEC Dynamic Rupture Group is convening a Zoom workshop on December 2, 2025. The theme is coseismic fault friction and the goal is to figure out, based on lab and field observations, which friction concepts and formulations are most appropriate to use when computationally simulating large earthquake behavior.
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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.
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We welcome attendance by 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.
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The deadline for registration is November 26, 2025.
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Ruth Harris (USGS) and Michael Barall (USGS)
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