Trio of small quakes rattles Bay Area near Santa Rosa

Three small earthquakes shook the Bay Area near Santa Rosa on Sunday afternoon, according to the U.S. Geological Survey.

The largest was a magnitude 4.0 temblor at 3:30 p.m., which was followed eight minutes later by a magnitude 3.1 temblor, then at 4:04 p.m. by a magnitude 3.4 earthquake.

All three quakes were centered two to three miles from Santa Rosa, according to the USGS. Light shaking was reported in Santa Rosa and north near Clearlake, and as far south as San José, as well as to the east in Sacramento and Elk Grove.

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In the last 10 days, there has been one earthquake of magnitude 3.0 or greater centered nearby.

An average of 25 earthquakes with magnitudes of 4.0 to 5.0 occur each year in California and Nevada, according to a recent three-year data sample.

The magnitude 4.0 earthquake occurred at a depth of 1.2 miles. The 3.1 temblor was at a depth of 1.4 miles, and the 3.4 quake was at a depth of 2.3 miles.

Did you feel these earthquakes? Consider reporting what you felt to the USGS.

Find out what to do before, and during, an earthquake near you by signing up for our Unshaken newsletter, which breaks down emergency preparedness into bite-sized steps over six weeks. Learn more about earthquake kits, which apps you need, Lucy Jones' most important advice and more at latimes.com/Unshaken.

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This story was automatically generated by Quakebot, a computer application that monitors the latest earthquakes detected by the USGS. A Times editor reviewed the post before it was published. If you're interested in learning more about the system, visit our list of frequently asked questions.

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This story originally appeared in Los Angeles Times.

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