Terremoto moderado mag. 3.8 - 27 miles NNW of Santa Rosa, Sonoma County, California, USA, jueves, 25 feb. 2021 -

Terremoto moderado mag. 3.8 - 27 miles NNW of Santa Rosa, Sonoma County, California, USA, jueves, 25 feb. 2021

Terremoto moderado magnitud 3.8 at 3 km depth

25 Feb 19:34 UTC: Primero en informar: USGS después de 4 minutos.
25 Feb 20:42: Magnitud recalculada de 3.5 a 3.3. Profundidad recalculada de 1.9 a 2.6 km (de 1.2 a 1.6 mi).
26 Feb 16:34: Magnitud recalculada de 3.3 a 3.8.
Update Thu, 25 Feb 2021, 19:39
Magnitude 3.5 earthquake strikes near Santa Rosa, Sonoma County, California, USA
3.5 quake 25 Feb 11:30 am (GMT -8)
3.5 quake 25 Feb 11:30 am (GMT -8)
The United States Geological Survey reported a magnitude 3.5 quake in the United States near Santa Rosa, Sonoma County, California, only 9 minutes ago. The earthquake hit in the morning on Thursday 25 February 2021 at 11:30 am local time at a very shallow depth of 1.2 miles. 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 3.5 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 Cobb (pop. 1,800) located 5 miles from the epicenter.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Cloverdale (pop. 8,800) located 11 miles from the epicenter, Clearlake (pop. 15,200) 14 miles away, Windsor (pop. 27,500) 19 miles away, Santa Rosa (pop. 175,000) 27 miles away, Ukiah (pop. 15,900) 31 miles away, and Rohnert Park (pop. 42,400) 34 miles away. In Petaluma (pop. 60,400, 42 miles away), and Napa (pop. 80,400, 46 miles away), the quake was probably not felt.
Download the Volcanoes & Earthquakes app to get one of the fastest seismic alerts online:
Android | IOS

Earthquake data:

Fecha & hora: 25 Feb 2021 19:30:19 UTC -
Hora local al epicentro: jueves, 25 feb 2021 11:30 (GMT -8)
Magnitud: 3.8
Profundidad: 2.6 km
Epicentro latitud / longitud: 38.81783°N / 122.82067°W (Condado de Sonoma, Condado de Kern, Estados Unidos)
Volcán mas cercano: Clear Lake (17 km / 11 mi)
Nearby towns and cities:
8 km al O de Cobb (pop: 1,780) --> ¡Vea sismos cercanos!
17 km al E de Cloverdale (Sonoma County) (pop: 8,810) --> ¡Vea sismos cercanos!
23 km al SO de Clearlake (Lake County) (pop: 15,200) --> ¡Vea sismos cercanos!
23 km al N de Healdsburg (Sonoma County) (pop: 11,700) --> ¡Vea sismos cercanos!
23 km al N de Russian River (pop: 11,700) --> ¡Vea sismos cercanos!
30 km al N de Windsor (Sonoma County) (pop: 27,500) --> ¡Vea sismos cercanos!
43 km al NNO de Santa Rosa (pop: 175,000) --> ¡Vea sismos cercanos!
50 km al SE de Ukiah (pop: 15,900) --> ¡Vea sismos cercanos!
54 km al NNO de Rohnert Park (pop: 42,400) --> ¡Vea sismos cercanos!
118 km al ONO de Sacramento (pop: 490,700) --> ¡Vea sismos cercanos!
Weather at epicenter at time of quake:
Overcast Clouds 15.9°C (61 F), humidity: 28%, wind: 2 m/s (4 kts) from NW
Fuente primaria de datos: USGS (United States Geological Survey)
Energía liberada estimada: 3.2 x 1010 joules (8.78 megawatt hours, equivalent to 7.56 tons of TNT) More info
Show interactive Map
[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.
3.82.6 km7km NW of The Geysers, CA, USAUSGS

User reports for this quake (6)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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!
Calistoga, CA / Weak shaking (MMI III) : Quick rattle | 2 users found this interesting.  
21.9 km SSW of epicenter [Map] / Weak shaking (MMI III)
Healdsburg (22.1 km S of epicenter) [Map] / Weak shaking (MMI III) / single vertical bump / 1-2 s
22.1 km S of epicenter [Map] / Very weak shaking (MMI II) / single lateral shake / very short : Felt more like a roll with a vertical bump followed by a very short shake (reported through our app)  
Pacifica, CA / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Felt it and my ceiling fan chandelier was swaying  
Town of Sebastopol California just outside of epic / not felt : No ground motion noticed downtown  
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area since 1900

Map of earlier quakes

Why is there advertising on this site?
Support us - Help us upgrade our services!
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Additional seismic data sources
  • Improved content in English
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery y otras fuentes como se ha señalado.
Uso de 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.