Sismo débil mag. 3.3 - Matanuska-Susitna Parish, 14 miles NNW of Alaska City, Anchorage, Alaska, USA, miércoles, 21 jul 2021 07:12 (GMT -8) -

Sismo débil mag. 3.3 - Matanuska-Susitna Parish, 14 miles NNW of Alaska City, Anchorage, Alaska, USA, miércoles, 21 jul 2021 07:12 (GMT -8)

Sismo débil magnitud 3.3 at 37 km depth

21 Jul 15:15 UTC: Primero en informar: USGS después de 3 minutos.
21 Jul 15:17: Profundidad recalculada de 35.6 a 35.0 km (de 22 a 22 mi). Ubicación del epicentro corregida 0.8 km (0.5 mi) al S.
21 Jul 15:29: Magnitud recalculada de 3.5 a 3.3. Profundidad recalculada de 35.0 a 36.9 km (de 22 a 23 mi). Ubicación del epicentro corregida 2.6 km (1.6 mi) al NNE.
Update Wed, 21 Jul 2021, 15:27
Small magnitude 3.5 earthquake 12 miles northwest of Alaska City, Alaska, United States
3.5 quake 21 Jul 7:12 am (GMT -8)
3.5 quake 21 Jul 7:12 am (GMT -8)
Just 15 minutes ago, a 3.5-magnitude earthquake struck near Alaska City, Anchorage, Alaska, USA. The tremor was recorded in the morning on Wednesday 21 July 2021 at 7:12 am local time, at a moderately shallow depth of 22 miles below the surface.
The event was filed by the United States Geological Survey, the first seismological agency to report it.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 3.5 as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Point MacKenzie (pop. 530) located 2 miles from the epicenter, Big Lake (pop. 3,400) 10 miles away, Alaska City (pop. 298,700) 12 miles away, Eagle River (pop. 24,800) 16 miles away, Eagle River (pop. 24,800) 16 miles away, Elmendorf Air Force Base (pop. 6,600) 16 miles away, Knik-Fairview (pop. 14,900) 16 miles away, Meadow Lakes (pop. 7,600) 22 miles away, and Wasilla (pop. 9,300) 23 miles away.

Download the Volcanoes & Earthquakes app and get one of the fastest seismic alerts online:
Android | iOS

Earthquake data

Fecha & hora: 21 Jul 2021 15:12:15 UTC -
Hora local al epicentro: miércoles, 21 jul 2021 07:12 (GMT -8)
Magnitud: 3.3
Prof.: 36.9 km
Epicentro latitud / longitud: 61.4085°N / 150.0068°W (Borough de Matanuska–Susitna, Alaska, Estados Unidos)
Antipode: 61.409°S / 29.993°E
Volcán mas cercano: Spurr (120 km / 75 mi)
Nearby towns and cities:
6 km al NNO de Point MacKenzie (pop: 529) --> ¡Vea sismos cercanos!
13 km al SSO de Big Lake (pop: 3,350) --> ¡Vea sismos cercanos!
22 km al NNO de Alaska City (pop: 298,700) --> ¡Vea sismos cercanos!
25 km al OSO de Knik-Fairview (pop: 14,900) --> ¡Vea sismos cercanos!
25 km al ONO de Eagle River (pop: 24,800) --> ¡Vea sismos cercanos!
25 km al ONO de Eagle River (Anchorage) (pop: 24,800) --> ¡Vea sismos cercanos!
27 km al SSO de Houston (pop: 2,210) --> ¡Vea sismos cercanos!
36 km al OSO de Wasilla (pop: 9,280) --> ¡Vea sismos cercanos!
38 km al S de Willow (pop: 2,100) --> ¡Vea sismos cercanos!
45 km al OSO de Gateway (pop: 5,550) --> ¡Vea sismos cercanos!
Fuente primaria de datos: USGS (United States Geological Survey)
Energía liberada estimada: 5.6 x 109 joules (1.56 MWh, equivalente a 1.34 toneladas de TNT) Más info
Mostrar mapa interactivo
[Reducir] [Agrandar]
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!
If you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable to earthquake science, seismic 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.
3.337 km3 Km NW of Point MacKenzie, AlaskaUSGS

User reports for this quake (3)

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!
Anchorage (28.6 km S of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / very short : Very quick bump. Felt it but nothing shook in my house. (reported through our app)  
GIRDWOOD (69.4 km SE of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / 1-2 s (reported through our app)
2221 Muldoon Rd, Anchorage AK (27.4 km SSE of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 2-5 s : Short, sharp jolt (reported through our app)  
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area

Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version
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:
  • Improved multilanguage support
  • Tsunami alerts
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Detailed quake stats
  • Additional seismic 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 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.