4.1-magnitude earthquake shakes thousands in Southern California, USGS says. ‘Big jolt’

A 4.1-magnitude earthquake shook the Southern California area, the U.S. Geological Survey reported.

The nearly 1-mile deep quake hit about 5 1/2 miles southwest from Corona in Riverside County, about a 40-mile drive southeast from Los Angeles, at 1:49 p.m. Wednesday, May 1, according to the USGS.

More than 6,000 people from as far away as Anaheim and San Diego reported feeling the tremor to the agency.

One big jolt,” a user on X, formerly known as Twitter, said of the tremor. “Almost knocked me off my chair.”

Erik Scott, public Information officer for the Los Angeles Fire Department, said on X that there were “no initial reports of structural damage or injuries.”

The jolt even triggered a response from In-N-Out, which joked the earthquake was a sign to grab a burger.

“There really is something special about the sense of community when an earthquake happens in the LA area,” another person wrote on X.

What to know about earthquakes

Magnitude measures the energy released at the source of the earthquake, the U.S. Geological Survey says. It replaces the old Richter scale.

Quakes between 2.5 and 5.4 magnitude are often felt but rarely cause much damage, according to Michigan Tech. Quakes below 2.5 magnitude are seldom felt by most people.

Earthquakes’ sudden, rapid shaking can cause fires, tsunamis, landslides or avalanches. They can happen anywhere, but they’re most common in Alaska, California, Hawaii, Oregon, Puerto Rico and Washington, according to the Department of Homeland Security.

If an earthquake strikes, it’s best to protect yourself right away. Here are tips from experts:

  • If you’re in a car: Pull over and stop. Set your parking brake.

  • If you’re in bed: Turn face-down and cover your head with a pillow.

  • If you’re outdoors: Stay away from buildings. Don’t go inside.

  • If you’re inside: Stay and don’t run outdoors. Stay away from doorways.

The best way to protect yourself during an earthquake is to drop, cover and hold on, officials say.

“Wherever you are, drop down to your hands and knees and hold onto something sturdy,” officials say. “If you’re using a wheelchair or walker with a seat, make sure your wheels are locked and remain seated until the shaking stops.”

Be sure to cover your head and neck with your arms, and crawl under a sturdy table if possible. If no shelter is available, crawl to an interior wall away from windows.

Once under a table, officials say you should hold on with one hand and be ready to move with it.

“There can be serious hazards after an earthquake, such as damage to the building, leaking gas and water lines, or downed power lines,” officials say. “Expect aftershocks to follow the main shock of an earthquake. Be ready to Drop, Cover, and Hold On if you feel an aftershock.”

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