A magnitude-4.4 earthquake shook the LA area early Tuesday morning.
The epicenter was about 10 miles east of downtown Los Angeles. It was at a depth of 10.8 miles.
There were no reports of significant damage. At 6:15 a.m., Caltech's Dr. Kate Hutton said no aftershocks had been reported.
"All is well, all is calm," said LA City Fire Capt. Steve Ruda.
A watch deputy at the Pico Rivera Sheriff's Station said several people called to confirm what they felt. Deputies at the station also felt the jolt.
"It felt like something heavy dropped, twice, like back-to-back. Not like an earthquake. Like something heavy hit the ground," the watch deputy said.
Craig Harshbarger's surveillance camera at his West Whittier Hills home captured the shaking.
"We were a little nervous, but everybody's ok," Harshbarger said. "Some stuff did fall from shelves."
Harshbarger said he got up, checked everything out, then signed on to Facebook. Google Trendsmap included the following real-time Twitter trends at 6 a.m. -- "shook," "quake," "epicenter," "whittier," "aftershock," "haiti," "usgs," "chile," "rattled,"... and "precious."
Emergency dispatchers for Los Angeles County areas received no calls for service and no reports of damage, said dispatch Supervisor Robert Diaz of the Los Angeles County Fire Department.
Los Angeles Fire Department personnel were placed on "earthquake mode" status and many firefighters were sent out to check their districts for damage, said department spokesman Erik Scott. "Earthquake mode means all fire equipment is brought out of the fire station and taken to a safe area. Crews check in with their commanders, then make a drive through the city.
"We had an influx of automatic 911 calls from building alarm systems," Scott said. "We have no reports of injuries related to the earthquake."
In downtown Los Angeles, the temblor interrupted elevator service in the new Los Angeles Police Department headquarters across from City Hall. An elevator that goes to the third floor was still working, but employees on higher floors were being told they'd have to climb the stairs.
Caltrans said that pavement damage on the 5 Freeway was caused by big rig traffic, not the earthquake. Raised concrete was discovered on the southbound side of the road in Rosemead.
The quake was felt as far away as San Diego County, according to reports received by the USGS.
In 1987, a magnitude-5.9 earthquake occurred along the fault. Eight people were killed and hundreds were injured. Property damage was estimated at $358 million.
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