A 500-Year-Dormant Fault in California Just Shook Our View of How Earthquakes Form

July’s West Coast quake that woke up the Garlock Fault was caused by numerous small faults

Popular Science
Nov 1 · 4 min read
A pair of big earthquakes this July ended a long period of relative seismic quiescence in California, and awakened a previously dormant big fault. Scientists think more than 100,000 seismic movements contributed to the big quakes. Photo: Wikimedia Commons/Arnold Genthe

By Kat Eschner

A pair of big earthquakes this July ended a long period of relative seismic quiescence in California, and awakened a previously…

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Popular Science

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