NAPA COUNTY (CBS SF) — The U.S. Geological Survey says a magnitude 2.5 earthquake has struck Napa County Monday morning.
The USGS says the quake’s epicenter was located 5 miles east of Yountville and struck at a depth of 5.7 mles. 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 quake struck at 5:54 a.m.
People as far as Sacramento and San Lorenzo reported feeling the quake, according to the USGS website. No damage was reported.
Last Thursday, a magnitude 4.1 earthquake struck Napa County, making it the largest quake to hit the Wine Country since a magnitude 6.0 struck the area last August.
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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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