A 4.7 magnitude earthquake erupted in Riverside county Monday and "was the largest temblor to hit the Los Angeles region in three years" reported the LA Times. Aftershocks continued through Tuesday in the area.

There were over 50 small aftershocks Tuesday [and] more than 150 on Monday, the LA Times reported:

"Monday's quakes were centered about 12 miles southeast of Anza, in Riverside County, and 23 miles south of Palm Springs, but were felt over a wide area of Southern California," read the report. "They were also felt in Sequoia National Park about 250 miles away."

Earthquakes of a 4.7 magnitude are typically only felt about 120 miles away from the epicenter, but Monday morning's quake traveled farther due to its location in the mountains.

That's because the quake occurred in the San Jacinto Mountains, which are composed of hard granite rock that transmits energy more efficiently, said Susan Hough, seismologist at United States Geological Survey.

There are no reports of the earthquake causing major damage, however.

The most recent large earthquake in that area occurred in 2010. "A M5.4 earthquake erupted at 4:53 pm (Pacific Time) about 30 miles south of Palm Springs, 25 miles southwest of Indio, and 13 miles north-northwest of Borrego Springs. It was followed by more than 60 aftershocks during the first hour," reports Caltech Seismological Laboratory on their website.

Brochures on earthquake preparedness are available at the San Diego County Office of Emergency Services and in PDF format online.