The US National Oceanic and Atmospheric Administration (NOAA) declared a tsunami threat on the California coast after the magnitude 7 earthquake, registered in this state earlier, APA reports citing TASS.
The warning covers the northern part of California, including San Francisco, and a portion of the neighboring state of Oregon.
Almost 5 million people in California and Oregon may be within the tsunami threat area, CNN reported, adding that the waves may hit the coast within 1 to 2 hours.
According to the US Geological Survey, the epicenter of the earthquake was located 63 km away west of Petrolia (California); the starting point was 0.6 km deep.
No victims or damage has been reported.
***23:22
The magnitude of the earthquake that struck Ferndale, California on Thursday has been revised to 7 from 6.6, the United States Geological Survey (USGS) said, APA reports quoting Reuters.
The quake was at a depth of 10 kilometers (6.21 miles), USGS said.
The U.S. National Tsunami Center also issued a tsunami warning.