https://www.sciencenews.org/article/california-earthquakes-raise-questions-future-tectonic-activity
Jan 12, 2021 - After back-to-back quakes, scientists are scrambling to figure out which faults ruptured and what it means for future California quake activity.
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https://www.livescience.com/24067-california-earthquake-shakeout-2012.html
The Great American Shakeout 2012 in California tests if residents are prepared for an earthquake on the San Andreas Fault.
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