A 3.3 magnitude earthquake has rocked parts of South Carolina, reports say.
Residents said shock waves rocked their homes when the quake hit just after 1:30 a.m. local time on Monday.
The quake happened about 3.6 miles east of Elgin and 21 miles northeast of Columbia, according to US Geological Survey seismologists.
Residents took to Twitter to say they could feel the shockwaves.
One of them claimed that his whole house was shaking.
Another posted: ‘Heard it before I felt it…phew. Now try that sleep trick again.
A third person said, “Save the lines for later. I have work tomorrow morning.
The quake was felt at Columbia Metro Airport and the University of South Carolina.
No damage to buildings or injuries were reported.
Geophysicist Amy Vaughan told The Associated Press: “There’s definitely been a ‘swarm’ here over the last few months.
“It’s not like a swarm like after a big seismic event, but we’ve had quite a few over the past few months.”
She called the quake “alarming for sure”.
South Carolina is not known for its earthquakes, but between 10 and 20 are recorded each year on average.
Earthquakes with a magnitude of 2.0 or greater were reported in the state last month.
Earthquakes usually occur at plate boundaries, but shaking in South Carolina is inside a plate.
Seismologists say most of the earthquakes that hit the state occur west and north of Charleston, WMBF reports.
In April, a magnitude 4.6 earthquake shook the Pacific coast of Mexico, sending strong tremors through southern California.
Tremors were felt in San Diego after an earthquake hit the coastal town of Ensenada.
Residents felt the tremors in La Mesa, Spring Valley and Pacific Beach.
Reports of shaking were also reported in southern Orange County.
US Geological Survey geologist Tom Rockwell told the San Diego Union-Tribune, “It was a sharp, very fast shaking that was widely felt in San Diego.”
The quake came nearly 12 years after a 7.2 earthquake rocked Baja California on Easter Sunday in 2010.
And, in March, a magnitude 5.2 earthquake struck near an oil refinery in Anchorage, Alaska.
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