Sismo debile mag. 3.6 - Borough di Matanuska-Susitna Parish, 1 km a nord da Anchorage, Alaska, Stati Uniti, mercoledì, 03 febbraio 2021 -

Sismo debile mag. 3.6 - Borough di Matanuska-Susitna Parish, 1 km a nord da Anchorage, Alaska, Stati Uniti, mercoledì, 03 febbraio 2021

Sismo debile magnitudine 3.6 at 56 km depth

3 Feb 19:09 UTC: Primo a segnalare: EMSC dopo 3 minuti.
3 Feb 19:10: Ora utilizzando nuova fonte di dati: USGS
... [show all] ...
3 Feb 19:49: Magnitudine ricalcolata da 3.7 a 3.6. Profondità ricalcolata da 49.3 a 56.4 km (da 31 a 35 mi). Posizione dell'epicentro corretta di 1.3 km (0.8 mi) al N.
Update Wed, 3 Feb 2021, 19:15
Small magnitude 3.7 earthquake 11 miles southeast of Susitna North, Alaska, United States
3.7 quake 3 Feb 10:06 am (GMT -9)
3.7 quake 3 Feb 10:06 am (GMT -9)
A moderately shallow magnitude 3.7 earthquake was reported in the morning near Susitna North, Matanuska-Susitna County, Alaska, USA.
According to the United States Geological Survey (USGS), the quake hit on Wednesday 3 February 2021 at 10:06 am local time at a moderately shallow depth of 31 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.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 3.7 as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Susitna North (pop. 1,300) located 11 miles from the epicenter. In Palmer (pop. 6,800, 37 miles away), the quake was probably not felt.
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Earthquake data:

Data & ora: 3 Feb 2021 19:06:36 UTC -
Ora locale a epicentro: mercoledì, 3 feb 2021 10:06 (GMT -9)
Magnitudine: 3.6
Profondità: 56.4 km
Epicentro latitudine / longitudine: 62.1023°N / 149.538°W (Borough di Matanuska-Susitna, Alaska, Stati Uniti)
Vulcano più vicino: Hayes (161 km / 100 mi)
Nearby towns and cities:
18 km ESE da Susitna North (pop: 1,260) --> Vedi sismi vicini
43 km NNO da Fishhook (pop: 4,680) --> Vedi sismi vicini
47 km NNE da Willow (pop: 2,100) --> Vedi sismi vicini
53 km N da Tanaina (pop: 8,200) --> Vedi sismi vicini
60 km NNO da Palmer (pop: 6,790) --> Vedi sismi vicini
66 km N da Knik-Fairview (pop: 14,900) --> Vedi sismi vicini
87 km N da Eagle River (pop: 24,800) --> Vedi sismi vicini
87 km N da Eagle River (Anchorage) (pop: 24,800) --> Vedi sismi vicini
100 km N da Anchorage (pop: 298,700) --> Vedi sismi vicini
933 km ONO da Juneau (pop: 32,800) --> Vedi sismi vicini
Weather at epicenter at time of quake:
Overcast Clouds -14.3°C (6 F), humidity: 66%, wind: 1 m/s (2 kts) from S
Fonte dati primaria: USGS (United States Geological Survey)
Stima dell'energia sismica liberata: 1.6 x 1010 joules (4.4 megawatt hours, equivalent to 3.79 tons of TNT) More info
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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.
MagnitudineProfonditàUbicazioneFonte
3.656 km17 Km ESE of Susitna North, Alaska, USAUSGS
3.656 kmCENTRAL ALASKA, USAEMSC

User reports for this quake (3)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Fishhok, Alaska (49.9 km SSE of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
Hudson wi / Very weak shaking (MMI II) / rattling, vibrating : Hudson wisconsin 1:02-1:03pm  
56.7 km SSE of epicenter [Map] / Weak shaking (MMI III) (reported through our app)
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Earlier earthquakes in the same area

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