No Damage Reported in 3.9-Magnitude Quake
A magnitude 3.9 quake shook much of the Inland Empire Monday and was felt in Orange County, but caused neither damage nor injuries.
The U.S. Geological Survey said the 10:13 a.m. temblor was centered on the San Jacinto fault, two miles west of Devore and 12 miles northwest of San Bernardino.
The San Jacinto fault is considered one of Southern California’s most active. It runs from its junction with the San Andreas fault near the Cajon Pass southeast to the Imperial Valley. Geological Survey seismologist Sue Hough noted that Monday’s quake was only a short distance from the San Andreas fault junction.
Residents in both San Bernardino and Riverside reported that windows and doors rattled and vibrations felt like the passing of heavy trucks.
Hough said it was a new quake and not an aftershock.
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