This short piece has been extracted from our longer animation, " ShakeAlert: Earthquake Early Warning System for the West Coast" found in here:
ShakeAlert (www.shakealert.org) is an experimental earthquake early warning system (EEW) being tested in the seismically vulnerable West Coast of the United States. This animation shows how ShakeAlert worked for the Napa earthquake, and how it could work for a large M7.8 hypothetical earthquake in Southern California.
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