A preliminary 3.9 magnitude earthquake struck near Millbrae on Friday evening, according to the United States Geological Survey.
The United States Geological Survey reported the magnitude-3.9 earthquake was centered more than 8 miles under the ground in San Mateo County.
A quick but firm rattle was felt throughout the Bay Area on Friday evening as a magnitude 3.9 earthquake shook the region.
The USGS website initially showed the quake to be magnitude 4.0, was updated to magnitude 4.1 before finally registering as a 3.9. Good evening Bay Area, CA.
An earthquake has shaken the San Francisco Bay Area and although it initially came in as a 4.1 magnitude shaker, it was downgraded to a 3.9, then a 3.7.
The United States Geological Survey originally estimated the quake at a 4.0 magnitude with an epicenter near Millbrae. It was upgraded shortly after to a 4.1 ...
An earthquake centered on the upper Peninsula, at San Francisco International Airport, rattled Bay Area residents Friday night.
The 3.7-magnitude quake was felt in the San Francisco Bay Area during the Friday evening rush. There were no immediate reports of injuries or damage.