National Geological Center gave notice earthquake today January 25, 2023 south of the beach Malibu California, by Magnitude 4.2It was felt in various parts of Los Angeles with no reports of injuries or property damage.
shiver today January 25, 2023 It was recorded at 2:00 a.m. 16 kilometers from Malibu, at a depth of 14 kilometers, and then a magnitude 3.5 aftershock was felt at 2:03.
Good morning Southern California! Did you feel the magnitude 4.2 earthquake about 10 miles south of Malibu Beach at 2:03 am? The #ShakeAlert system was activated. See: https://t.co/14WBptlPYi @Cal_OES @CAGeoSurvey @CaltechSeismo pic.twitter.com/PQHTrsy1Yk
— USGS ShakeAlert (@USGS_ShakeAlert) January 25, 2023
The USGS explained on its Twitter account that the quake was “very small”, so alerts on local cell phones were not activated. And the Los Angeles Fire Department reported that the city’s 106 fire stations would begin inspecting them for potential damage.
“This review will be conducted from land, air and sea,” the alert said.
What is the San Andreas Fault that runs through California?
The Earth’s crust is broken into a series of plates that have been moving very slowly across the Earth’s surface for millions of years.
Two of these moving plates are in western California; The boundary between them is the San Andreas Fault.
The Pacific Plate (to the west) is moving northwest relative to the North American Plate (to the east), causing earthquakes along the fault.
Whenever an earthquake occurs in this region, seismologists around the world wonder whether it is the “Big One”, an event that occurs every 150 years and involves a large earthquake.