2 Earthquakes Strike San Juan Bautista In 10-Minute Span, Shaking Felt In South Bay
SAN JUAN BAUTISTA (CBS SF) – Two earthquakes struck within a 10 minute span near the town of San Juan Bautista in San Benito County late Wednesday night, according to the U.S. Geological Survey's automated seismograph alert network.
The USGS reports a magnitude 3.8 earthquake struck at 10:21 p.m., at a depth of 3.9 miles. At 10:26, a magnitude 4.2 earthquake struck the same area, at a depth of 4.1 miles.
MORE: Swarm Of Small Earthquakes Rattle San Benito & Contra Costa Counties
Deeper quakes are less noticeable while a shallow quake--in the 0 to 40 mile depth range--can feel much stronger than their actual reported magnitude. Quakes just below the earth's surface, in the 0 to 10 miles range, can cause even more damage at lower magnitudes.
The quakes were felt in much of Santa Clara County, including San Jose, Morgan Hill and Gilroy. Visitors to the USGS website from Hollister, Santa Cruz, Salinas and Monterey also reported feeling the quakes.
COMPLETE QUAKE COVERAGE: CBS Earthquake Resource Center
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DID YOU FEEL IT?: USGS Shake Map For Northern California
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BAY AREA FAULTS: Interactive Map Of Local Faults
Strong earthquakes with an epicenter off the coast can trigger tsunamis, depending on the size and type of the fault movement. The Pacific Tsunami Warning Center tracks earthquake data for the West Coast.
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