Annual Meeting - SCEC.org

Poster Abstracts | Group 1 – GMP
Bernardino, regardless of rupture direction. We successfully verified these interpretations through
direct (forward time) simulations of ground motion.
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DYNAMIC RUPTURES FROM SIMULATIONS OF LONG-TERM SLIP HISTORIES: A
FEASIBILITY STUDY Mai PM, Song S, Hillers G, Pitarka A, Dalguer LA, and Ampuero J
One of the key questions in seismic-hazard driven research on ground-motion prediction and
earthquake source dynamics is how to generate rupture models that are consistent with observed
source complexity. Ideally, we would like to be able to generate hundreds of physically selfconsistent
source models for ground motion calculation whose occurrence in space and time
reflects the basic observations of earthquake scaling and earthquake statistics, and whose rupture
characteristic show the spatio-temporal heterogeneity of past earthquakes. To this end, we examine
how 3D-simulations of long-term slip histories on 2D-faults with spatial variation in rate-and-state
parameters can be used to construct input models for spontaneous dynamic rupture calculations.
Starting from an existing catalog of model-quakes with more than 1,500 events in the magnitude
range 4.7