Two small earthquakes jolt Napa County, north of St. Helena
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ANGWIN, Calif. - Two earthquakes struck Napa County Tuesday afternoon, the U.S. Geological Survey reported.
The first earthquake, measured at 3.6-magnitude, was centered in the small community of Angwin, just north of St. Helena.
The quake struck at 2:30 p.m.
The second earthquake occurred just minutes later and was measured at 2.6 in magnitude, the USGS reported.
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