Hayward Fault Earthquake Simulation
Hayward fault earthquake simulation graphic

The Livermore-developed Wave Propagation Program used about 10,000 time steps to simulate 100 seconds of ground shaking and fault slip during a hypothetical magnitude 7.0 earthquake on the Hayward fault in the San Francisco Bay Area. Resolving the event in three dimensions at high resolution, and including effects of realistic topography, heterogeneous materials, and anelastic attenuation, requires about 1 billion grid points. These simulations are valuable in emergency planning and risk assessment as well as seismic engineering and retrofitting activities. The same simulations were also animated by the California Academy of Sciences and appear as part of their Earthquake: Evidence of a Restless Planet dome theater show to educate and entertain a broad audience.

Code: Wave Propagation Program (WPP)
Machine: Sierra
Cores: 2048
Run time: 4.5 hours wall clock time
Researcher: Anders Petersson