YORBA LINDA (CBSLA.com) — A magnitude-4.1 earthquake shook Orange County on Wednesday, but there were no immediate reports of damage or injuries.

The quake struck at 1:31 p.m. and was centered about two miles north-northeast of Yorba Linda, according to the U.S. Geological Survey (USGS).

Residents from La Habra, Anaheim, Pasadena, Ontario and Chino reported feeling at least some shaking, which was followed shortly by a magnitude-2.1 quake approximately three minutes later.

“It was felt in the L.A. Basin, really as far north as Santa Clarita and then as far south as about Vista, so it was felt all throughout the area, and made people aware that you live in earthquake country,” John Belini of the USGAS National Earthquake Center told KNX 1070 NEWSRADIO.

L.A. City Fire was in Emergency Earthquake Mode shortly after the quake hit, with fire crews at 106 neighborhood fire stations conducting area assessments to ensure there was no damage.

The quake comes three weeks after a series of earthquakes — including a magnitude-4.5 earthquake — shook Yorba Linda just 10 hours after a magnitude-4.3 temblor.

Dr. Lucy Jones of Caltech said the second quake was likely a “doublet” due to its similar magnitude and location as the first earthquake.

“They’re definitely a related sequence,” Jones said. “Five percent of the time you get something bigger, here we hit it exactly on the same.”


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