Mag. 4.1 earthquake - 24 mi north of Santa Rosa, Sonoma County, California, on 2020-03-25 03:57:38 -08:00 -

Mag. 4.1 earthquake  - 24 mi north of Santa Rosa, Sonoma County, California, on 2020-03-25 03:57:38 -08:00

Light magnitude 4.1 earthquake at 2 km depth

25 Mar 12:01 UTC: First to report: USGS after 4 minutes.
Mar 25 12:03: Magnitude recalculated from 3.8 to 4.1.
Hypocenter depth recalculated from 2.1 to 2.2 km.
Date & time: 25 Mar 2020 11:57:38 UTC -
Local time at epicenter: 2020-03-25 03:57:38 -08:00
Magnitude: 4.1
Depth: 2.2 km
Epicenter latitude / longitude: 38.79033°N / 122.765°W (California, United States)
Nearest volcano: Clear Lake (20 km / 12 mi)
Nearby towns and cities:
5 km (3 mi) SW of Cobb (pop: 1,780)
18 km (11 mi) W of Hidden Valley Lake (pop: 5,580)
22 km (14 mi) E of Cloverdale (Sonoma County) (pop: 8,810)
22 km (14 mi) NNE of Healdsburg (Sonoma County) (pop: 11,700)
22 km (14 mi) SSW of Clearlake (Lake County) (pop: 15,200)
39 km (24 mi) N of Santa Rosa (pop: 175,000)
113 km (70 mi) WNW of Sacramento (pop: 490,700)
117 km (73 mi) NNW of San Francisco (pop: 864,800)
Primary data source: USGS
Estimated released energy: 8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) More info
[smaller] [bigger]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
MagnitudeDepthLocationSource
M 4.12.2 km2km NNW of The Geysers, CA (USA)USGS
M 3.810 kmNorthern California (USA)EMSC

User reports for this quake (7)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Contribute:
Leave a comment if you find a particular report interesting or want to add to it.
Flag as inappropriate.
Mark as helpful or interesting.
Send your own user report!
Healdsburg CA (20.4 km SSW of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
Fernley, NV (321.8 km ENE of epicenter) [Map] / not felt (reported through our app)
78.5 km NE of epicenter [Map] / Very weak shaking (MMI II) (reported through our app)
9053 Hwy 175 kelseyville,Ca 95451 / Very strong shaking (MMI VII) : Shook my whole house and I live a distance from where it happened (I live near red hills rd.
275.1 km SE of epicenter [Map] / Moderate shaking (MMI V) : Me and my girlfriend live in a trailer thats not to balanced so when our dog scratches it shakes and thats what we thought it was but it lasted about 3-4 mins
16626 Mountain View Dr, Cobb, CA 95426 / Light shaking (MMI IV)
Reno (United States of America, 259 km E of epicenter) : 5:18am aftershock in Reno very slight movement shaking in 4th floor high rise. (reported through EMSC)
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area since 1900

Mag. 4.1 earthquake - 24 mi north of Santa Rosa, Sonoma County, California, on 2020-03-25 03:57:38 -08:00

Map of earlier quakes

Volcanoes & Earthquakes - new app for Android
 

More on VolcanoDiscovery

 
Why is there advertising on this site?

Support us!

Maintaining the website and our free apps is a time- and cost-intensive effort.
If you find the information useful and would like to support our team to develop further features and get the upgraded ad-free version, consider making a donation (PayPal or Online cc payment).
Planned features:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
Thanks to your past donations, these features have been added recently:
  • Earthquake archive back to 1900
  • Additional data sources
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.