The strongest earthquake in 20 years shook a large swath of Southern California and parts of Nevada on the July 4th holiday, rattling nerves and causing injuries and damage in a town near the epicenter, followed by a swarm of ongoing aftershocks.
The 6.4 magnitude quake struck at 10:33 a.m. Thursday in the Mojave Desert, about 150 miles (240 kilometers) northeast of Los Angeles, near the town of Ridgecrest, California.
Multiple injuries and two house fires were reported in the town of 28,000. Emergency crews dealt with small vegetation fires, gas leaks and reports of cracked roads, said Kern County Fire Chief David Witt.
He said 15 patients were evacuated from the Ridgecrest Regional Hospital as a precaution.
Ridgecrest Mayor Peggy Breeden said that utility workers were assessing broken gas lines and turning off gas where necessary.
A widely felt magnitude 5.4 quake before dawn Friday was the strongest aftershock thus far. Seismologists had said there was an 80 percent probability of an aftershock of that strength within a week.
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The local senior center was holding a July 4th event when Thursday's big quake hit and everyone made it out shaken up but without injuries, she said.
"Oh, my goodness, there's another one (quake) right now," Breeden said on live television as an aftershock struck.
Gov. Gavin Newsom declared a state of emergency for Kern County. The declaration means that the state will help the county and municipalities in it with emergency aid and recovery efforts.
Breeden noted at a news conference that other nearby governments have offered to help the recovery effort.
President Donald Trump said he was fully briefed on the earthquake and that it "all seems to be very much under control!" Police and fire officials said at a news conference Thursday afternoon that they have enough resources so far to meet needs in the wake of the earthquake.
California Highway Patrol Lt. John Williams said officials have found cracks on several roads in the county, but overpasses and underpasses are in good shape.
"It almost gave me a heart attack," said Cora Burke, a waitress at Midway Cafe in Ridgecrest, of the big jolt.
"It's just a rolling feeling inside the building, inside the cafe and all of a sudden everything started falling off the shelf, glasses, the refrigerator and everything in the small refrigerator fell over."
Glenn Pomeroy, the head of California's Earthquake Authority, said the earthquake is "an important reminder that all of California is earthquake country."