LAFAYETTE, CALIFORNIA – Yup, that WAS an earthquake!
A magnitude 3.6 earthquake shook the North and East Bay on Thursday, with light but noticeable shaking reported in parts of the 925 as a storm moved through the region.
According to the U.S. Geological Survey, the quake struck at 12:41 pm local time on Thursday, November 13, and was centered about 4 km (roughly 2.5 miles) south of Vallejo at a depth of 9.8 km. USGS lists the event as fully reviewed with a magnitude of 3.6.
Where the quake hit
The epicenter was on the south side of Vallejo, near the Carquinez Strait and I-80 corridor, just north of the county line that separates Solano from Contra Costa.
USGS data and regional coverage show the shaking intensity peaking around level IV (light) on the Community Internet Intensity Map near Vallejo and Benicia, with weaker shaking spreading into the inner East Bay and up into the North Bay.
No injuries or significant damage were immediately reported, but residents described a sharp jolt and a few seconds of rolling motion as phones pinged with quake alerts.
How it was felt in the 925
Even though the epicenter was just outside the 925, the quake was close enough to rattle parts of Contra Costa County.
Reports compiled from USGS “Did You Feel It?” responses and social media chatter show people in Martinez, Concord, Pleasant Hill and other nearby communities feeling a brief shake or bump, often while already watching the rain.
Some described it as a single strong jolt; others said it felt like a heavy truck going by, but strong enough to make hanging items sway for a moment.
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