LOS ANGELES: A powerful 6.9-magnitude earthquake struck off the coast of northern California, the US Geological Survey said, but there were no immediate reports of damage or a tsunami threat.
The quake struck at 0518 GMT (1.18am Malaysian time) with an epicentre located 77km west-northwest of the town of Ferndale and at a depth of 7km, said the USGS, which monitors earthquakes worldwide.
There were no immediate reports of casualties or damage, but early reports indicate the quake was felt as far away as San Francisco, around 400km south of Ferndale.
Authorities in Humboldt County, the part of sparsely-populated northern California some 400km up the coast from San Francisco, said they had no calls about damage of injuries, local media reported.
The Pacific Tsunami Warning Center issued a bulletin announcing the quake, but downplayed any danger.
“A widespread destructive tsunami threat does not exist based on historical earthquake and tsunami data,” the Center said.
The USGS said there is a 90% probability of a “strong and possibly damaging aftershock” of magnitude 5 or more in the next seven days, and a 5-10% chance of a quake equal to or great than Sunday’s temblor. — AFP