A magnitude-4.2 earthquake struck the California coast on Sunday afternoon. The quake hit north of San Francisco, and dozens of people have reported to have felt the tremors to the USGS.

The earthquake, which was 1.3 miles deep, hit near The Geysers at 12:34pm Pacific time.

The Los Angeles Times reported strong shaking was caused in the epicentre, which was located in an underpopulated mountainous area.

However, the more populated areas nearby of Healdsburg and Geyserville were said to have only experienced light shaking.

California earthquake alert

California earthquake

The site of the quake was near where the Kincade fires had been burning for over a week.

State officials have said the fires are likely in their final days, but has managed to consume thousands of acres of land.

Two earthquakes have been detected since the start of the Kincade fires.

A magnitude-3.7 earthquake was detected on November 2.

Steam power plants at The Geysers

Previously, a magnitude-3.1 quake was detected on October 28.

A number of other tremours have been felt in the area, but most under a magnitude of 2.0.

After Sunday’s 4.2 magnitude, the area was reportedly the target of three more small quakes.

The area is known to be a hotspot for geothermal activity, meaning it is prone to small and frequent quakes.

The Geysers geothermal plant uses steam harvested from under the surface, which is heated by magma.

The area is home to 22 geothermal power plants, which draw steam from more than 350 wells.

This is used to create electricity at power plants across the state of California.

Small earthquakes are regularly recorded in the area.