Rural area in Northern California jolted by its biggest quake since 1940

SAN FRANCISCO (AP) — A rural area of Northern California experienced its strongest earthquake since 1940 on Wednesday morning, causing some injuries but no immediate reports of major damage, officials said.

The epicenter of the quake, with a preliminary magnitude of 5.6, was about 7 miles (12 kilometers) northwest of the agricultural town of Willits, according to the U.S. Geological Survey. It was widely felt, including in the coastal city of Fort Bragg. The initial quake was centered inland about 50 miles (80 kilometers) east of Fort Bragg at 8:10 a.m. PT, and the USGS said it was about 5 miles (8 kilometers) deep.

The area in Mendocino County dotted with small, agricultural towns is 140 miles (225 kilometers) northeast of San Francisco.

Heather Rose, a Mendocino County spokesperson, said that hospitals had reported some injuries but that she had no details on their nature or extent. She said officials plan to meet later Wednesday when more information could be released.

Power outages are affecting more than 6,000 residents of six towns near the epicenter, the Mendocino County Executive Office said in a statement. The office encouraged people to stay off the highways and roads to allow work crews to inspect for damage and make repairs.

Brie Leon and her colleagues had just opened Club Calpella Restaurant when the building started shaking, rattling plates and liquor bottles.

“I had just turned the open sign on and went back into the kitchen, and that’s when it happened,” she said. “It almost felt like something hit the building.”

The restaurant is in Calpella, California, a town about 10 miles (16 kilometers) south of the epicenter and in a region of Mendocino County that has been struck by smaller quakes this year.

This was the biggest earthquake in nearly nine decades in the region, which is not on a major fault, said Lucy Jones, a veteran California seismologist.

“The area is not without earthquakes, but they’re usually smaller than this,” Jones said. She added that aftershocks are likely, but they’ll “probably stay on the low side.”

Three other quakes under a 2.7 magnitude struck near the epicenter within an hour.

Leon said the quake knocked frames off the walls and bottles off the shelves in the restaurant and the stockroom next door. She and other servers were cleaning up not long after to welcome customers for breakfast.

“It wasn’t a big, big quake, but things went everywhere,” she said.

Alan Harris and his family were at home in Kelseyville, about 40 miles (64 kilometers) southeast of the epicenter, when he received an earthquake alert on his cellphone. Soon after, the house began shaking.

“I yelled downstairs immediately to my wife and daughter to make sure they were hanging on,” Harris said. “It was scary. You could hear things crashing, mostly on the third floor of the house.”

A security camera inside Harris’ home shook vigorously as the quake struck. A few loud, crashing sounds can be heard on the video footage before Harris calls out: “Is everyone OK?”

It lasted only about 30 seconds. Framed photos fell off the walls and a computer monitor was knocked over, Harris said. Nothing appeared badly damaged, he added, noting he found no structural damage to the house.

Nearly 657,000 earthquake early warning alerts were sent by the MyShake App throughout Northern California, the California Governor’s Office of Emergency Services said. Cal OES had not received any reports of damage or injuries, but it was coordinating with authorities to evaluate impacts, the office said in a statement.

Hundreds of thousands more people received alerts through other public safety alert systems, but those numbers have not been finalized, said Robert de Groot, a scientist with the ShakeAlert operations team.

“The alert deliveries for this are going to be well over a million,” Groot said.

Weber reported from Los Angeles. Associated Press writer Russ Bynum contributed from Savannah, Georgia.

Redwood Valley Market owner Alex Chehada picks up items that fell off the shelves after an earthquake in Redwood Valley, Calif., Wednesday, June 24, 2026. (Kent Porter/The Press Democrat via AP)

Redwood Valley Market owner Alex Chehada watches his closed circuit feed showing the time when an earthquake struck in Redwood Valley, Calif., Wednesday, June 24, 2026. (Kent Porter/The Press Democrat via AP)

Redwood Valley Market owner Alex Chehada looks at items which fell off the shelves after an earthquake in Redwood Valley, Calif., Wednesday, June 24, 2026. (Kent Porter/The Press Democrat via AP)

SAN JUAN, Puerto Rico (AP) — The two powerful earthquakes that struck Venezuela’s northern coast, killing more than 180 people, were an event known as a “doublet.”

Doublet earthquakes happen when a pair of similar-sized quakes hit close in location and time, according to the U.S. Geological Survey. On Wednesday evening, a 7.2 magnitude quake hit first, followed by a magnitude 7.5 just 39 seconds later.

The deadly one-two punch toppled buildings in Venezuela’s capital, Caracas and beyond. Some 1,500 people were injured and thousands were reported missing. The coastal region of La Guaira, which is north of Caracas, experienced some of the heaviest damage and casualties, officials said.

While not as common as a typical earthquake where a main shock is followed by much smaller aftershocks, doublets can happen anywhere in the world, Christine Goulet, director of the USGS earthquake science center in California, told The Associated Press.

Doublets indicate a complex fault structure, like the one in Venezuela. Known as the Bocono fault, it runs along the backbone of the Venezuelan Andes for about 300 miles (500 kilometers). A previous doublet — of magnitudes 6.2 and 6.3 — struck an area west of Caracas in September 2025, killing at least one person and injuring more than 100 others. Most of the damage was reported in the states of Zulia and Lara.

Most earthquakes occur along plate boundaries, which is where tectonic plates meet.

A rupture where the Caribbean and South American tectonic plates meet unleashed the two quakes this week.

The doublet occurred where the Caribbean plate, located north of Venezuela, moves eastward relative to the South American plate at an average rate of 0.79 inches (2 centimeters) a year.

“It’s a large displacement,” Goulet noted. “It’s on the order of the San Andreas fault.”

The movement was a shallow strike-slip faulting, which occurs when two blocks of rock slide past one another horizontally.

That kind of movement is not more dangerous by default, Goulet said.

“A more vertical motion can be more damaging,” she said, adding that other factors, including the length of the rupture, determine the amount of damage.

The boundary between the Caribbean and South American plates is less active than others, said David Naar, associate dean at the University of South Florida’s College of Marine Science.

In the past century, only seven earthquakes of magnitude 6 and higher have hit in the immediate vicinity of the most recent ones, according to USGS.

These include the 2025 doublet that struck west-northwest of the latest quakes.

Individual earthquakes of magnitude 6 or higher struck in 2009, 1989 and 1975. The most devastating one hit in July 1967. It was a 6.6 magnitude quake that killed hundreds of people.

José Vitriago, who lives in Caracas, remembers that one. He was 2 years old.

“Our house broke,” he recalled in an interview with state-owned TV station Venezolana de Televisión.

Vitriago said the doublet that hit Wednesday “was horrible, horrible.”

Overall, five earthquakes of magnitude 7 and higher have occurred in northern Venezuela or near the coast since 1900, according to USGS.

The most catastrophic earthquake occurred in March 1812 along the Bocono fault system, killing an estimated 30,000 people.

Scientists cannot predict earthquakes, but aftershocks are common after big ones. The USGS said there’s a 99% chance of at least one magnitude 4 aftershock hitting Venezuela within the next week, and a 24% chance of a magnitude 6 one occurring.

Unlike other countries, Venezuela does not have an early earthquake warning system, which relies on sensors to detect the first waves of an earthquake.

“It’s very distressing that there was basically no time to evacuate,” she said. “That’s extremely unfortunate.”

This story has been corrected to reflect that Lara and Zulia are states, not towns.

Residents walk among the rubble of building damaged in earthquakes the previous day in Catia La Mar, Venezuela, Thursday, June 25, 2026. (AP Photo/Pedro Mattey)

A firefighter rescues a dog from a building that collapsed after an earthquake in Caracas, Venezuela, Wednesday, June 24, 2026. (AP Photo/Pedro Mattey)

A man walks among the rubble of a building that collapsed in earthquakes the previous day in La Guaira, Venezuela, Thursday, June 25, 2026. (AP Photo/Pedro Mattey)