USGS estimated that the chance of an aftershock with a magnitude over 5 in the next week was less than 1%.
USGS estimated that the chance of an aftershock with a magnitude over 5 in the next week was less than 1%.
Just last week, the Bay Area marked the 33rd anniversary of the Loma Prieta earthquake, a 6.9 magnitude temblor that plunged the region into chaos on Oct. 17, 1989. So far, there have been no reports of major damage caused by today’s quake in San Francisco.
State Sen. Scott Wiener, who represents San Francisco, was one of many to take note of the tremor on social media and express hope that a bigger temblor wasn’t forthcoming.
Wow that was quite the tremor. 🤞 that’s the end.
— Senator Scott Wiener (@Scott_Wiener) October 25, 2022
BART officials said to expect “major delays” as it held trains for several minutes after the shake to perform seismic inspections.
The transit agency said all 57 trains in service during the quake—except those in the Transbay Tube—were held for five minutes in case the 5.1 tremor was followed by a larger one.
By 11:55 a.m., the trains started moving again at slower speeds, officials said on Twitter. The post-quake pause caused delays for most trains of about 12 to 15 minutes.
San Francisco resident Abhay Kashyap tweeted that his Ikea lamp served as an “at-home #earthquake detector.”
Earthquake warning was on point so I could tape my own at-home #earthquake detector, the faithful Ikea lamp!#California #sanfrancisco pic.twitter.com/MDLuvwzlVP
— Abhay Kashyap (@hayabhay) October 25, 2022
Meanwhile, others were noting how they got advanced warnings of the quake from their phones.
It was quite a jolt here in south San Jose
— kaitlyn farley (@K_Fars_14) October 25, 2022
Despite the strength of the initial earthquake, residents in San Francisco’s Tenderloin neighborhood told a reporter for The Standard that they didn’t feel anything.
Today’s 5.1 earthquake was the third-largest since 2000 to hit the area surrounding the San Francisco Bay. It shook the Sargent Fault, running beneath Santa Clara County, which was also the site of 2007’s magnitude 5.5 quake centered near East Foothills.
Another data point for earthquake followers: Three of the Bay Area’s Top 5 quakes happened in October, a prime time for “earthquake weather,” a season that has been formally debunked by USGS scientists.
Kamola Kobildjanova, who lives outside San Jose, said she was working from home when she “definitely felt everything shaking.”
“I wouldn’t say it felt very strong, but I grabbed both [my infant twin daughters] and went outside after it was over to wait out the possibility of the aftershock afterwards.”
Kobildjanova said she may be overly sensitive to seismic activity: She is originally from Uzbekistan, a country in Central Asia that also has many earthquakes.
“There have definitely been earthquakes that I felt were stronger,” she said.
Jonah Owen Lamb, Maryann Jones Thompson and Jennifer Wadsworth contributed additional reporting for this story.
Joe Burn can be reached at jburn@sfstandard.com
Josh Koehn can be reached at josh@sfstandard.com