According to USGS records, 22 earthquakes have occurred within 50 miles of the epicenter in the last 100 years — the largest of which was the magnitude-6.0 quake that destroyed buildings in Napa in ...
A small earthquake with a preliminary magnitude of ... The quake was detected at 8:51 a.m. northeast of St. Helena near Conn Valley Road. The USGS reported the quake shook about 5 miles down.
The San Francisco Bay Area on Sunday was rocked by the largest earthquake to hit the ... about six miles south-southwest of Napa: The wine bottles of Napa Valley. From Twitter user Anindya ...