PETROLIA, Calif. – A light 2.9 magnitude earthquake struck roughly 30 miles west of Petrolia late Friday, according to the U.S. Geological Survey. The quake occurred offshore in the Pacific Ocean around 3:07 p.m. local time at a depth of about 22 kilometers.
According to the USGS, the tremor originated along the seismically active boundary where the Gorda and North American plates meet — an area known for frequent small quakes. No damage or injuries were reported, and there were no indications of a tsunami threat.
Residents across Humboldt County, including Ferndale and Eureka, may not have felt the mild shaking due to the quake’s offshore location and shallow depth. Local emergency management officials continue to monitor seismic readings, though this event was considered minor.
California’s northern coastline experiences dozens of small quakes each month, most registering below magnitude 3.0. Experts note these tremors are a routine part of regional tectonic activity and typically pose no significant risk.
The USGS said aftershocks are unlikely, but residents are reminded to keep emergency kits updated and review earthquake safety plans. No further advisories were issued Friday night.
