7.0 earthquake off Northern California prompts brief tsunami warning.

A 7.0 magnitude earthquake shook a large area of Northern California on Thursday, knocking items off grocery store shelves, sending children scrambling under desks and prompting a brief Tsunami Warning for 5.3 million people along the U.S. West Coast.

The quake struck at 10:44 a.m. west of Ferndale, a small city in coastal Humboldt County, about 130 miles (209 km) from the Oregon border, the U.S.

It was felt as far south as San Francisco, some 270 miles (435 km) away, where residents described a rolling motion for several seconds. It was followed by multiple smaller aftershocks.

There were no immediate reports of major damage or injuries from the quake, one of the most powerful temblors to hit California since a 7.1-magnitude quake hit Ridgecrest in 2019.

The tsunami warning was in effect for roughly an hour. Issued shortly after Thursday’s quake struck, it covered nearly 500 miles (805 km) of coastline, from the edge of California’s Monterey Bay north into Oregon.