![Seismogram being recorded by a seismograph at the Weston Observatory in Massachusetts, USA.. Photo by Z22 [CC BY-SA 3.0], via Wikimedia Commons.](https://i0.wp.com/mynewsla.com/wp-content/uploads/2015/03/16-9-Seismogram-earthquake-quake.jpg?ssl=1)
The temblor struck at 9:10 a.m., at a depth of 6.8 miles, with the epicenter seven miles south-southeast of Big Bear Lake, according to a computer- generated report from the U.S. Geological Survey.
The quake was first reported as a magnitude-4.5, but later downgraded by the USGS to 4.0.
No damage was reported in the Los Angeles County Fire Department’s jurisdiction, and the agency was in its normal operating mode, county fire Inspector Randall Wright said.
—City News Service