ShakeOut Earthquake Wave Propagation Simulation
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ShakeOut Earthquake Wave Propagation Simulation

May 1, 2012
The blue shaded region in this image of Southern California shows the 600 kilometer x 300 kilometer area in which the ShakeOut earthquake wave propagation simulation was run. The heavily populated Los Angeles basin is identified by a smaller interior box that includes Los Angeles, Long Beach, Westwood and Whittier Narrows. Warmer colors show cumulative peak accelerations throughout Southern California, produced by the simulated 7.8 magnitude ShakeOut rupture. The high-peak ground accelerations in the Los Angeles region indicate significant hazard to buildings and people in the region from large but distant southern San Andreas earthquakes. ShakeOut simulations were performed in conjunction with The 2008 Great California ShakeOut earthquake preparedness drill (the largest in the country up to that time) that involved over 5,000 emergency responders and disaster recovery agents and the participation of over 5.5 million citizens. The simulations were used to assess and inform people of the potential hazards from a magnitude 7.8 scenario earthquake ("the Big One") in the region. Credit: Visualization: Amit Chourasia, San Diego Supercomputer Center; Simulation: Kim Olsen, Yifeng Cui, Jing Zhu, David Okaya, Luis Dalguer, Steve Day, Philip Maechling, Thomas Jordan, Southern California Earthquake Center

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