A 3.3-magnitide quake was reported south of Joshua Tree, according to the U.S. Geological Survey.
A 2.6-magnitude earthquake shook the San Fernando Valley Tuesday.
Seismologists say an early warning system did notify scientists that the quake was imminent, but that the system still needs work.
There were no immediate reports of damage or injury.
A 3.5-magnitude quake was reported in Wrightwood Friday morning, according to the USGS.
The California Institute of Technology and the United States Geological Survey selected the city of Long Beach to serve as a beta site for California Integrated Seismic Network (CISN) Earthquake Early Warning System (EEWS).
A San Fernando Valley lawmaker is among several members of Congress calling for funding of an early warning system that could alert residents before an earthquake hits.
A pair of small earthquakes rattled the Southland within one hour of each other Thursday, according to reports.
Authorities say a home in Fullerton has been red-tagged following Friday night’s magnitude-5.1 earthquake.
Monday’s morning earthquake renewed the debate over the funding of an early earthquake-warning system.
A 3.0-magnitude earthquake struck Saturday near Hollywood, according to the U.S. Geological Survey.
The New Madrid fault zone in the nation’s midsection is active and could spawn future large earthquakes, scientists reported Thursday.
A 4.4-magnitude earthquake has rattled the Inland Empire.
The city of Los Angeles is teaming up with a renowned U.S. Geological Survey (USGS) seismologist to help prepare for its next major earthquake, officials announced Tuesday.
A magnitude-3.1 earthquake shook part of West Los Angeles Friday afternoon.