3.5-magnitude earthquake strikes near Castaic

A magnitude 3.5 earthquake rattled Castaic Friday morning, but there were not immediate reports of damage of injuries.

Preliminary 3.9-magnitude earthquake strikes near Barstow

A preliminary 3.9 magnitude earthquake struck about 14 miles northeast of Barstow at 11:34 a.m. on Saturday.

5.0 magnitude earthquake strikes off coast of Puerto Rico

The epicenter was located about 14 miles southeast of the town of Guanica along the island’s southern coast.

Preliminary 4.6-magnitude earthquake strikes near Barstow, California

A preliminary 4.6 magnitude earthquake struck about 14 miles north of Barstow shortly after 7 p.m. with two aftershocks of 2.2 and 2.9 magnitude recorded, according to the U.S. Geological Survey.

Granada Hills earthquake rattles Southland overnight

Firefighters and police officers fanned out across Los Angeles Wednesday morning after an earthquake with a preliminary magnitude of 3.6 struck two miles northeast of the Granada Hills area, but no major infrastructure damage was reported.

Second 6.0+ magnitude quake strikes Puerto Rico amid heavy seismic activity Tuesday morning

A 6.4-magnitude earthquake struck Puerto Rico before dawn on Tuesday, and was followed three hours later by an aftershock measuring 6.0. They are the largest in a series of quakes that have struck the U.S. territory in recent days and caused heavy damage in some areas. 

3.0-magnitude earthquake hits near Brea

A 3.0-magnitude earthquake struck Orange County this morning, according to Caltech.

Preliminary 4.0-magnitude quake rattles SoCal

A preliminary 4.0-magnitude earthquake struck off the Port Huneme coast Thursday morning, officials said. 

3.3 magnitude earthquake strikes Brea

Did you feel it? A 3.3 magnitude earthquake struck the Brea area Saturday morning. 

4.3-magnitude quake jolts Central California

A preliminary 4.3-magnitude earthquake struck near Paso Robles Tuesday morning, the U.S. Geological Survey reported. 

3.0 earthquake strikes near San Pedro

An earthquake with a magnitude of 3.0 has struck about 13 miles south of San Pedro, according to the U.S. Geological Survey.

Magnitude 3.2 earthquake jolts Brea area

An earthquake with a preliminary magnitude of 3.2 struck near Brea Wednesday evening, but no damage or injuries were reported.  

Two earthquakes strike Palm Springs area

Two 3.5 earthquakes were detected in the Palm Springs area Sunday.