The California coast was shaken by seven earthquakes in less than 24 hours, raising concerns among residents about the potential arrival of "The Big One." The United States Geological Survey (USGS) detected a 3.

A 3.6-magnitude earthquake shook the Southern California area — the third tremor to hit the area Monday, Feb. 10, the U.S. Geological Survey reported. The about 5-mile deep quake hit about 3 miles northeast from San Bernardino just before 10 p.m., according to the USGS.

The California coast has been rocked by seven earthquakes in less than a day, including four in the same city near the San Andreas fault - sparking fears that the 'Big One' could be on the way.