There have been a number of small earthquakes in Napa County this morning, beginning with a magnitude of 3.6 followed by five smaller tremors, all under magnitude 2.0.
According to the United States Geological Survey the 3.6 magnitude quake struck at 12:36 a.m. with a depth of nearly 3 feet.
The earthquake hit at around 12:36 a.m. and was centered 7.6 miles east-southeast of Angwin, 17.5 miles north of Napa and 19.4 miles north-northeast of Sonoma, the USGS said.
All quakes struck in the same general area.
There were no reports of damage.
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