5.1 quake shakes Los Angeles

Authorities say a magnitude-5.1 earthquake has shaken the Los Angeles area and surrounding counties.

The US Geological Survey originally estimated the quake to be a magnitude-5.3. It said the Friday quake struck at about 9:11pm and was centred near Brea in Orange County — about 20 miles southeast of downtown Los Angeles.

About an hour earlier, a 3.6 quake hit nearby in the city of La Habra.

Callers to KNX-AM reported seeing a brick wall collapse, water sloshing in a swimming pool, and wires and trees swaying back and forth.

The LA Fire Department says it is looking for signs of damage or injuries.