California, tiny earthquakes and faults
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The USGS reported that, over the past several days, a sequence of at least five earthquakes shook California, with magnitudes ranging from 2.5 to 3.3. The most recent, a 3.3 magnitude quake, struck near Tres Pinos in San Benito County Saturday morning at a depth of 4 miles.
A minor, 3.1-magnitude earthquake struck in the San Francisco Bay Area on Thursday, according to the United States Geological Survey. The temblor happened at 6:54 a.m. Pacific time about 15 miles northeast of Alum Rock, Calif., data from the agency shows.
The United States Geological Survey captured the earthquake at about 7:00 a.m. about 20 miles from San Jose, according to USGS data.
MENDOCINO COUNTY, CA - A 4.4 magnitude quake was registered near Willits at midday on Tuesday, according to the U.S. Geological Survey.
Tremors beneath Northern California show hidden plate movement, helping scientists better understand where future big earthquakes may occur.
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California’s Hidden Earthquake Threat: Hundreds of Active Faults Beyond San Andreas
Since the Northridge quake, a permanent network of GPS stations has been deployed, precisely measuring the gradual strain accumulation across tectonic plates. This data underscores the reality: everyone in the region lives within about five miles of an active fault.
Seismic tremors reveal a shallow fragment of ancient tectonic plate beneath Northern California, helping explain damaging earthquakes near the surface.
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Parkfield, San Andreas, and the quest for a 'crystal ball' for predicting earthquakes before they happen
A small town in California was hit by earthquakes once every 22 years for over a century, setting the stage for a major seismic experiment in the 1980s and 90s. But the quake ended up being 11 years late.
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