A quake of 5.8 on the Richter scale has just hit downtown south east Los Angeles.
Epicenter reported about 2 miles southwest of Chino Hills and about 5 miles southeast of Diamond Bar.

The center was about 7.6 miles deep. In general, earthquakes centered closer to the Earth's surface produce stronger shaking and can cause more damage than those further underground.

A 5.8 magnitude quake is considered by the USGS to be "moderate," which can cause slight damage to buildings and others structures. About 500 can happen globally each year, the survey says.

No reports of buildings collapsing or fatalities ...

Buildings shook for up to 30 seconds.

Most buildings in the area are less than eight storeys tall.

Fire Officials describe it as a 'major siesmic event.'

An eyewitness said "I can tell you that we had a good-sized shake"
"It started slowly. It continued on, shaking the bureau pretty well. ... Right now we're just sort of assessing the situation. Nothing fell off the walls ... but there definitely was a shake."

  The eyewitness has lived in southern California for about 12 years, and said "I can tell you this is probably the best one we have had."

He said the quake "picked up steam. At its height, the building was doing some good swaying back and forth." He estimated the quake lasted no longer than about 20 seconds.