6.0 magnitude earthquake struck the California-Nevada border

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SAN FRANCISCO – An earthquake with a preliminary magnitude of 6.0 shook the California-Nevada border on Thursday afternoon. According to the US Geological Survey, people reported trembling hundreds of kilometers away.

There were no immediate reports of serious damage or injury.

The earthquake hit at 3:49 p.m. in a region about 250 miles east of San Francisco and south of Lake Tahoe. Its epicenter was four miles west-southwest of Walker, a California city of fewer than 900 people. Dozens of aftershocks with at least half a dozen magnitude 4.0 or more followed, the USGS said.

“The ground shook a lot and then everything started to fall,” said Carolina Estrada, manager of the Walker Coffee Company. Syrup bottles broke, dishes fell to the floor and the roof of the shop collapsed a little.

The shaking lasted 30 seconds or more, she said.

“We ran out of the building,” said Estrada. But the tremors continued, and “boulders the size of cars” fell on nearby US 395, she said.

Cars were hit by rocks but no one was injured, the California Highway Patrol reported.

At one point, rockfalls closed about 40 miles of the interstate, a major route through the northern Sierra Nevada, authorities said. Parts of the freeway were later reopened, but the crews stayed on site in the event of aftershocks, according to the California Department of Transportation.

In Nevada, Reno City Hall has been evacuated, Mayor Hillary Schieve told the Reno Gazette Journal. “It shook pretty well,” said Schieve.

Communities around Lake Tahoe and as far as Fresno, California felt the earthquake, which was 6 miles deep. It was as far away as Las Vegas, too.

The epicenter was near the Antelope Valley Fault. The quake was the strongest since a 6.1 magnitude earthquake in 1994.

The quake was “a classic earthquake with normal faults for Eastern California,” and aftershocks were frequent in the region, tweeted seismologist Lucy Jones.

“People in the area should expect aftershocks for days after an earthquake this size,” said Jason Ballman of the University of Southern California’s Southern California Earthquake Center.

Reports of damage or injuries may not be available for days as a lot of the vibration is felt in remote areas, Ballman warned.

Preliminary reports had shown that two earthquakes were 25 seconds long but 100 miles apart. But the U.S. Geological Survey checked the tremors and removed the report of a 4.8 magnitude quake in Farmington, about five miles southeast of Stockton.

The uncertainty was caused by the remote location, which had fewer seismic instruments, said Austin Elliott, a USGS geologist.

“The system underestimated the original size of this event and estimated a location that was slightly different from the actual location,” he said.

As the seismic waves moved across the state, other stations mistakenly interpreted them as a separate quake because “they arrived at an unexpected time,” Elliott said.

Elliott also said that earthquakes often occur along this fault. He cited a 5.8 magnitude earthquake that struck the town of Lone Pine in the eastern Sierra last month, tumbling boulders down the mountain. Whitney.

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