Earthquake strikes fault line at risk of ‘The Big One’ just miles from iconic US city

By CHRIS MELORE, ASSISTANT SCIENCE EDITOR FOR DAILYMAIL.COM

Published: 21:09 BST, 30 May 2025 | Updated: 21:17 BST, 30 May 2025

An earthquake has struck California’s Bay Area right along a fault line experts now fear may be the surprise cause of the long-awaited ‘Big One.’

The US Geological Survey (USGS) said the 3.2 magnitude quake struck in the city of Concord at 3:11pm ET Friday afternoon.

Concord, home to more than 120,000 Californians, is just 25 miles from San Francisco. There have been no reports of any injuries, according to KGO.

Concord also sits just five miles from the Hayward Fault, a 74-mile fault line that runs along the foot of the East Bay hills.

While Friday’s earthquake likely wasn’t felt in San Francisco, experts fear the Hayward Fault could soon unleash a historical earthquake that devastates the entire Bay Area.

Although the 800-mile San Andreas Fault has been the focal point of most seismic studies in California, researchers have started to fear that the Hayward Fault could deliver an earthquake greater than 7.0 in magnitude in the next few years.

This is a developing story. More updates to come.

The US Geological Survey said the 3.2 magnitude quake struck in the city of Concord at 3:11pm ET Friday afternoon

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Earthquake strikes fault line at risk of ‘The Big One’ just miles from iconic US city

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