SCEC Award Number 19121 View PDF
Proposal Category Workshop Proposal
Proposal Title Dynamic Rupture TAG – The 2019 Ingredients Workshop – Fault Friction
Name Organization
Ruth Harris United States Geological Survey Michael Barall Invisible Software, Inc.
Other Participants We welcome students and early-career scientists in our dynamic rupture group and at our workshops. We anticipate that participants at our 2019 workshop will include FARMers both inside and outside SCEC.
SCEC Priorities 4a, 3c, 3f SCEC Groups FARM, GM, Geology
Report Due Date 02/08/2020 Date Report Submitted 02/04/2020
Project Abstract
This workshop was the second of a series of four SCEC5 workshops designed to evaluate the importance of each of the four ingredients required for dynamic earthquake rupture simulations. The four ingredients are: initial stress conditions, fault geometry, rock properties, and fault friction. This workshop included a range of views of how fault friction operates in the Earth, based on information from lab experiments, from field observations, and from dynamic rupture simulations. The participants also learned about two current related SCEC projects: the dynamic rupture code validation project and the surface fault displacement project.
Intellectual Merit The workshop presentations and discussion spanned our knowledge from the field to the lab to the state of the art of computational simulations. It gave us more ideas about how we might improve our ideas about how earthquake source physics works, and how we might implement these ideas.
Broader Impacts A total of 53 people participated, including 27 in-person and 26 remote-access. Our workshop attendees included scientists from the U.S.A., Canada, China, France, Germany, Japan, Mexico, New Zealand, and Switzerland. Twenty of our workshop participants were either graduate students or postdocs. This workshop, along with its annual companions in the series that started in 2018 are the international discussions of how dynamic rupture simulations do and should work. We welcome participation from all who are interested.
Exemplary Figure Figure 1