A preliminary magnitude 4.3 earthquake struck around The Geysers near northern Sonoma County California, Saturday morning.

Sonoma County unveils new map of evacuation zones as preparations ramp up for fire season Emergency officials want local residents to “know your zone” for disaster evacuations as wildfire ...

An earthquake with a magnitude of 4.3 struck in Sonoma County, followed by a couple of aftershocks nearby in Lake County.

An earthquake with a magnitude recorded of 3.5 rattled The Geysers early Friday morning, according to the United States Geological Survey.

The US Geological Survey recorded a magnitude 3.9 earthquake near the Geysers, west of Cobb in Sonoma County on Monday night.

A 3.9 earthquake Wednesday morning in Sonoma County was felt in San Francisco, the U.S. Geological Survey reported.

An earthquake with a magnitude of 4.3 struck in Sonoma County on Saturday morning, followed by a couple of aftershocks nearby in Lake County.

A preliminary 3.0 earthquake struck Sonoma County Sunday morning, according to the United States Geological Survey.

A magnitude 4.2 quake struck near the border of Sonoma and Lake counties on Saturday, according to the United States Geological Survey. The earthquake hit near The Geysers at 7:30 a.m.