An earthquake registering a preliminary magnitude of 4.2, later adjusted to 4.0, occurred in the East Bay on Monday evening. The seismic event struck at 7:46 PM, with its epicenter located 5 kilometers west-northwest of Dublin, California. It was felt briefly in San Francisco, although there were no reported damages. The event spurred typical social media chatter. While the early USGS ShakeMap only noted shaking reports on the Peninsula, it confirmed shaking was also experienced in San Francisco, serving as a reminder of the area’s seismic activity.
An earthquake with a preliminary magnitude of 4.2, later revised to 4.0, struck the East Bay at 7:46 pm, with the epicenter near Dublin, California.
Despite being felt in San Francisco, there were no reports of damage, and social media activity was the main response to the earthquake.
The USGS's early ShakeMap indicated reports of shaking on the Peninsula, confirming that the quake was felt beyond the initially recorded area.
Historically, significant earthquakes in the Bay Area are infrequent, with a minor quake of 3.7M occurring just before on January 12.
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