COBB, Calif. >> A small earthquake has shaken a rural area of Northern California about 90 miles north of San Francisco, but there are no reports of any damages or injuries. 

The U.S. Geological Survey says the magnitude-4.4 quake struck shortly before 9 p.m. Sunday near the town of Cobb and the Geysers, a complex of geothermal power plants in the Mayacamas Mountains. 

Hundreds of people have reported feeling the quake on the USGS website, most in nearby Healdsburg and Calistoga but some as far away as San Francisco. 

The area, where seismic activity is common, has been struck several times by small quakes in recent months. 

Sheriff’s dispatchers from the surrounding counties say they have received no calls about damages or injuries.