Small magnitude 3.4 earthquake 21 miles northeast of Santa Rosa, California, United States
3.4 quake 10 Sep 12:01 am (GMT -7)

An earthquake of magnitude 3.4 occurred only 11 minutes ago 21 miles northeast of Santa Rosa, California, United States, the United States Geological Survey reported.
The quake hit at a very shallow depth of 3.9 miles beneath the epicenter near Santa Rosa, Sonoma County, California, USA, after midnight on Tuesday, September 10th, 2024, at 12:01 am local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 3.4 earthquake as well.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Middletown (pop. 1,300) located 8 miles from the epicenter.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Windsor (pop. 27,500) located 20 miles from the epicenter, Clearlake (pop. 15,200) 20 miles away, Santa Rosa (pop. 175,000) 21 miles away, Rohnert Park (pop. 42,400) 26 miles away, and Napa (pop. 80,400) 30 miles away. In Petaluma (pop. 60,400, 32 miles away), Vacaville (pop. 96,800, 36 miles away), and Fairfield (pop. 113,000, 39 miles away), the quake was probably not felt.


Earthquake data:
Date & time: Sep 10, 2024 12:01 am (Los Angeles time) local time (10 Sep 2024 07:01 GMT)
Magnitude: 3.4
Depth: 6.2 km
Epicenter latitude / longitude: 38.69°N / 122.5°W (Napa, California, United States)
Primary data source: USGS
https://www.volcanodiscovery.com/earthquake/news/252000/Small-magnitude-34-earthquake-21-miles-northeast-of-Santa-Rosa-California-United-States.html