Orange County Register

Today's quake occurred before dawn and was not widely felt.

A magnitude 2.6 earthquake occurred at 4:45 a.m., slightly north of Yorba Linda and Chino Hills, in the area where a swarm of small earthquakes has been happening off-and-on for much of this year. The latest quake began 11.5 miles deep, on the northeast edge of Chino Hills, and a bit east of Brea, the U.S. Geological Survey says. It happened along Carbon Canyon Road, the site of most of the small earthquakes. Earlier this year, Sue Hough, a USGS seismologist, said that the quake area was behaving strangely and needed to be watched. A short time later, it stopped producing quakes so regularly. But isolated ones pop up, like the one that occurred today.

Click here for live earthquake posts on Twitter. And go to Earthquake Central for live updates of Southern California earthquakes.

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