A powerful 7.0-magnitude earthquake struck off the coast of Northern California Thursday morning, prompting tsunami warnings for hundreds of miles along the West Coast, including the San Francisco Bay Area.
The earthquake occurred at approximately 10:44 a.m. local time, with its epicenter near Petrolia in Humboldt County, according to the U.S. Geological Survey (USGS). Initially recorded as a 6.6-magnitude event, the quake was later revised to 7.0, underscoring its severity.
The National Tsunami Warning Center issued a tsunami warning for coastal regions stretching from Davenport, California, to Florence, Oregon-a span of approximately 620 miles. The warning includes major population centers such as San Francisco, urging residents to evacuate to higher ground or move inland. "Evacuation is recommended. Move to high ground or inland," the National Weather Service's advisory stated.
Residents across Northern California and into the Central Valley reported feeling the tremor, with accounts of intense shaking in areas like Eureka and Crescent City. Minutes after the initial quake, a significant aftershock measuring 5.8 in magnitude struck near Cobb, California, in Lake County, according to the USGS. Additional smaller aftershocks, ranging from 2.5 to 4.2 in magnitude, were recorded in the region.
California Governor Gavin Newsom confirmed that the state's Office of Emergency Services is actively responding to the earthquake and its aftermath. "Californians should follow guidance from local emergency responders," Newsom urged on social media, emphasizing the importance of immediate action in affected areas.
The earthquake has triggered widespread concern across the West Coast, as tsunami warnings represent the highest level of threat from the National Weather Service. According to the advisory, "widespread flooding is expected or occurring," and residents are urged to heed evacuation orders promptly.
The epicenter of the quake lies in a seismically active region along the Pacific Ring of Fire, which is known for frequent tectonic activity. Humboldt County, particularly the area surrounding Petrolia, has experienced significant earthquakes in the past. However, the magnitude and scope of Thursday's event have heightened concerns about the safety of communities along the coastline.
This is a developing story. Please check back for updates.
