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A series of earthquakes shook the Anza area after hitting in the San Jacinto Mountains north of the Riverside County town Tuesday afternoon, according to the U.S. Geological Survey.

The largest was a magnitude 3.5 that struck 5 1/2 miles north-northwest of Anza about 3:57 p.m., which followed a magnitude 3.4 with an epicenter nearby at 3:41 p.m., USGS said.

Officials had preliminarily said the initial quake was the largest, a magnitude 3.7, before revising the figure down.

magnitude 2.3 and a magnitude 2.1 quake also followed the initial one.

The largest quake was estimated to have weak shaking near the epicenter, but shaking from the 3.4 magnitude temblor was estimated to be slightly stronger. People reported feeling them from San Bernardino to San Diego, USGS said.

There were no immediate reports of damage or injury.

Check back for updates on this developing story.