A 3.7 magnitude earthquake has struck San Francisco, according to the U.S. Geological Survey.

The Chronicle

Many San Franciscans were jolted by a 3.7 magnitude earthquake that struck just after 7 a.m. Friday. 

The epicenter of the quake was detected near the San Francisco Zoo, according to preliminary data reported by the U.S. Geological Survey.

The quake appeared to emanate from the San Andreas Fault, according to a USGS map of the quake. No tsunami warning or advisory was issued, according to U.S. Tsunami Warning System officials.

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A map showing earthquake fault lines and the probability that each will produce a quake of magnitude 6.7 or greater striking somewhere in the Bay Area by the year 2043. 

The Chronicle

Reports of damage were not immediately available, and there were reports of small aftershocks that followed the initial quake.  

The earthquake occurred at a depth of 5.2 miles, according to USGS. 

An earthquake shook the San Francisco Bay Area on Friday morning.

San Francisco Chronicle

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Across much of the western Bay Area, people described being rattled awake by shaking from the earthquake — from Novato to Portola Valley, according to social media users. It was felt all across San Francisco, from the Richmond District to Twin Peaks to Nob Hill. 

The San Francisco Zoo and its neighbor, San Francisco State University, did not immediately say whether their grounds had been damaged by the earthquake.

Tara Duggan contributed to this report. 

This story is developing. Check sfchronicle.com for updates.

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Reach Annie Vainshtein: [email protected]

Jan 10, 2025|Updated Jan 10, 2025 7:40 a.m.