CALISTOGA (CBS SF) — A magnitude 3.6 earthquake struck the North Bay Thursday morning, according to the U.S. Geological Survey.
Officials said the quake struck at 8:59 a.m. about 7 miles west of Calistoga in northern Napa County, at a depth of 4.4 miles.
According to visitors to the USGS website, shaking was mostly felt in Napa and Sonoma Counties. Weak shaking was also reportedly felt in parts of Marin County and in Oakland.
There are no reports of damage or injuries.
COMPLETE QUAKE COVERAGE: CBS Earthquake Resource Center
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.
WEST COAST TSUNAMI TRACKING:
Tsunami Alerts & Maps