SAN DIEGO (FOX 5/KUSI) — A collection of earthquakes struck east of San Diego County close to El Centro in a single day Monday after a preliminary magnitude 4.8 rattled the realm.
The preliminary — and largest — earthquake was recorded simply after 12:30 a.m. at a depth of about three kilometers, in line with the U.S. Geological Survey.
It set off almost two dozen further quakes, most ranging in magnitude from about 2.5 to three.9 with one hitting a 4.5. The newest to strike, a magnitude 2.5, was reported by USGS close to the Interstate 8 simply after 9:30 a.m.
In line with the USGS “Did You Really feel It?” survey, the strongest shaking with the earthquakes was reported in Calexico, El Centro and Brawley. Some in San Diego County additionally reported experiencing some gentle tremors.
No injury or accidents have been reported presently.
Nonetheless, the primary earthquake, USGS says, did set off the Shake Alert system because it was initially detected as a magnitude 5.0, sending out notifications to the cell telephones of these dwelling in across the epicenter.
All these back-to-back shocks, referred to as a “swarm,” aren’t essentially uncommon for the realm, however they don’t seem to be thought of a frequent prevalence.
The final swarm reported near El Centro was last May, when three totally different swarm occasions had been triggered in San Diego and Imperial counties the span of some days.
As Professor of geology emeritus at San Diego State College Dr. Pat Abbott defined to FOX 5 on the time, the japanese San Diego space is especially prone to those collection of earthquakes, as a result of geothermal power within the stretch of land simply south of the Salton Sea.
The 35-mile stretch of land between the tip of the San Andreas fault on the backside of the ocean and the highest of the Imperial Fault, which runs up into Imperial County from Mexico, homes numerous magma and heat volcanic rocks below the floor at a low depth. This creates power that contributes to numerous motion and subsequently, earthquake exercise.
And these swarms, Abbott mentioned, not often function a foreshock to a much bigger earthquake on the horizon.
“Each time we get a swarm of earthquakes, we take them significantly, however we additionally know from historical past that normally it’s not going to result in something larger,” he continued. “It’s simply kind of like one of many little options about dwelling in California – we get a lot of little earthquakes … I want to label them as reminders (that) we reside in earthquake nation.”
It is a growing story. Examine again for updates.