HUMBOLDT COUNTY, Calif. (KTXL) — A magnitude 6.2 earthquake was recorded just off the coast of Northern California Monday.
The U.S. Geological Survey reported the quake at 12:10 p.m. off the North Coast, roughly 24 miles away from the Humboldt County community of Petrolia and 45 miles southwest of Eureka.
The earthquake’s preliminary magnitude was measured at 5.8 before it was upgraded by the USGS.
Multiple aftershocks were recorded off the coast and near coastal communities.
People across Northern California, and even those living as far north as Oregon, reported feeling shaking. A geologist with the California Geological Survey said they could feel shaking as far as San Francisco, which is roughly 250 miles from Petrolia.
Seismologist Dr. Lucy Jones said the earthquake may have had an intensity of VII, meaning “very strong.”
California’s Office of Emergency Services said it was “actively monitoring” the effects of the earthquake, but so far, no onshore structural damage has been reported. The U.S. Geological Survey estimated economic losses of less than $10 million and no fatalities.
The Humboldt County Sheriff’s office of emergency services did not issue any evacuation orders, though a few roads were closed due to rockslides.
The area last suffered an earthquake of a similar magnitude in 1993, when one person died, according to the USGS.
The U.S. National Tsunami Warning Center said a tsunami was not expected.
“The Mendocino fracture zone is the southern boundary between the Juan de Fuca plate and the Pacific plate. It is a transform fault, meaning the motion is sideways. No vertical motion so little water is displaced and thus no tsunami warning,” Dr. Jones explained on Twitter.
Petrolia General Store manager Jane Dexter told the San Francisco Chronicle the rumbling and shaking lasted for about 20 seconds. Glass bottles fell off the shelves at the store, bursting on the floor, but no one was hurt, she said.
“It was bigger than (anything) I’ve felt in a long time out here,” she told the Chronicle.
California’s Office of Emergency Services said 2,500 people were notified about the earthquake before shaking began through the state’s early warning system called MyShake.
“It is important for all those in the region to remain vigilant … as sizable aftershocks will occur along the North Coast over the next few days,” OES Director Mark Ghilarducci said in a statement.
The Associated Press contributed to this report.