A magnitude-3.7 earthquake was reported by the United States Geological Survey to have occurred beneath San Francisco International Airport Friday evening, leading the ground to rattle across most of the Bay Area.
According to seismologists, the shaking was felt around 6:30 p.m. local time and was centered more than 8 miles below the surface of San Mateo County.
Earthquakes that register less than a magnitude-4.0 are considered to be minor and usually result in little to no damage.
The temblor was felt as far north as Santa Rosa, as far south as Santa Cruz, and as far east as Tracy, according to a map posted on the agency's website.
The quake was strong enough to rattle dishes in San Francisco's Nob Hill neighborhood.
It was not strong enough to set off cell phone alerts, which are triggered by events of 4.5 magnitude, the USGS said.
BART reduced speeds to complete track safety inspections. Riders were told to expect residual delays of up to 20 minutes systemwide.
There were no immediate reports of damage.
The temblor was felt as far north as Santa Rosa, as far south as Santa Cruz and as far east as Tracy, according to a map posted on the agency's website.
The quake was strong enough to rattle dishes in San Francisco's Nob Hill neighborhood.
It was not strong enough to set off cellphone alerts, which are triggered by events of 4.5 magnitude, the USGS said.
In San Francisco's Castro District, some didn't feel a thing. Others like Marti Diehl noticed a slight shake as she enjoyed cocktails at a local bar.
"I was sitting on the bar stool and I was just starting to stand up and I went (shakes) and he was next to me. I said 'did you feel that?' and he said 'Yep!' ... It wasn't the drinks," she told KPIX.
A 3.7 earthquake was reported near Millbrae Friday evening, according to the United States Geological Survey (USGS). The epicenter of the quake was near San Francisco International Airport (SFO) — approximately one mile northeast of Millbrae.
USGS reports the earthquake happened at 6:38 p.m. As of 7:40 p.m., the earthquake was downgraded to a 3.7 magnitude after being initially reported as a 4.0 earthquake.
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