The US National Weather Service has cancelled its tsunami warning for the country’s west coast, after a 7.0 magnitude earthquake struck early on Thursday.
At least 5.3 million people in California were under a tsunami warning after the earthquake struck, the US Geological Survey said.
It was felt as far south as San Francisco, where residents felt a rolling motion for several seconds, and was followed by smaller aftershocks.
There were no immediate reports of major damage or injury.
Governor Gavin Newsom said he had signed off on a state of emergency declaration to quickly move state resources to affected areas along the coast.
State officials were concerned about damage in the northern part of the state, he said.
The National Weather Service had urged residents along the northern California coastline, including in the San Francisco Bay Area, to move inland because of the tsunami threat.
Throughout northern California phones buzzed with a tsunami warning from the National Weather Service that said: “A series of powerful waves and strong currents may impact coasts near you. You are in danger. Get away from coastal waters. Move to high ground or inland now. Keep away from the coast until local officials say it is safe to return.”
The quake struck at 10.44am west of Ferndale, a small city in coastal Humboldt County near the Oregon border, according to the USGS.
