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Sismo leggero mag. 4.5 - 19 km a sud ovest da Susitna North, Borough di Matanuska-Susitna, Alaska, Stati Uniti, giovedì, 26 nov 2020 12:12 (GMT -9)

Sismo leggero mag. 4.5 - 19 km a sud ovest da Susitna North, Borough di Matanuska-Susitna, Alaska, Stati Uniti, giovedì, 26 nov 2020 12:12 (GMT -9) Sismo leggero mag. 4.5 - 19 km a sud ovest da Susitna North, Borough di Matanuska-Susitna, Alaska, Stati Uniti, giovedì, 26 nov 2020 12:12 (GMT -9)

Sismo leggero magnitudine 4.5 a 40 km di profondità

26 Nov 21:16 UTC: Primo a segnalare: USGS dopo 4 minuti.
26 Nov 21:20: Profondità ricalcolata da 33.5 a 33.7 km (da 21 a 21 mi).
26 Nov 21:25: Profondità ricalcolata da 33.7 a 40.3 km (da 21 a 25 mi).
26 Nov 21:31: Profondità ricalcolata da 40.3 a 39.7 km (da 25 a 25 mi). Posizione dell'epicentro corretta di 3.4 km (2.1 mi) al NNW.
Update Thu, 26 Nov 2020, 21:18

Light magnitude 4.5 quake hits 53 miles north of Anchorage, Alaska around noon

4.5 quake 26 Nov 12:12 pm (GMT -9)
4.5 quake 26 Nov 12:12 pm (GMT -9)
An earthquake of magnitude 4.5 occurred only 6 minutes ago 53 miles north of Anchorage, Alaska, the United States Geological Survey (USGS) reported.
The quake hit at a moderately shallow depth of 21 miles beneath the epicenter near Susitna North around noon on Thursday 26 November 2020 at 12.12 pm 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.
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 Susitna North (pop. 1,300) located 13 miles from the epicenter, Willow (pop. 2,100) 17 miles away, Talkeetna (pop. 900) 24 miles away, Trapper Creek (pop. 500) 24 miles away, Meadow Lakes (pop. 2,200) 25 miles away, Elmendorf Air Force Base (pop. 24,800) 48 miles away, Eagle River (pop. 24,800) 48 miles away, and Anchorage (pop. 298,700) 53 miles away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

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Dettagli del sismo

Data e ora26 Nov 2020 21:12:10 UTC
Ora locale all'epicentrogiovedì, 26 nov 2020 12:12 (GMT -9)
Prof.39.7 km
Epicentro latitudine / longitudine62.0119°N / 150.0177°W (Borough di Matanuska-Susitna, Alaska, Stati Uniti)
Antipodo62.012°S / 29.982°E
Intensità di scuotimentoScuotimento leggero
Sentito8 rapporti
Fonte dati primariaUSGS (United States Geological Survey)
Vulcano più vicinoHayes (135 km / 84 mi)
Luoghi vicini19 km SSO da Susitna North (pop: 1,260) | Mappa | Sismi nelle vicinanze
29 km N da Willow Creek (pop: 2,100) | Mappa | Sismi nelle vicinanze
44 km NNO da Houston (pop: 2,210) | Mappa | Sismi nelle vicinanze
48 km NNO da Meadow Lakes (pop: 7,570) | Mappa | Sismi nelle vicinanze
51 km NO da Fishhook (pop: 4,680) | Mappa | Sismi nelle vicinanze
58 km NO da Lakes (pop: 8,360) | Mappa | Sismi nelle vicinanze
60 km NNO da Knik-Fairview (pop: 14,900) | Mappa | Sismi nelle vicinanze
80 km NNO da Eagle River (pop: 24,800) | Mappa | Sismi nelle vicinanze
80 km NNO da Eagle River (Anchorage) (pop: 24,800) | Mappa | Sismi nelle vicinanze
89 km N da Alaska City (pop: 298,700) | Mappa | Sismi nelle vicinanze
Meteo all'epicentro al momento del sismoOvercast Clouds -2.8°C (27 F), humidity: 90%, wind: 2 m/s (3 kts) from SSE
Energia sismica rilasciata stimata3.5 x 1011 joules (98.6 MWh, equivalent to 84.8 tons of TNT) | about seismic energy
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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.
4.540 km18 Km SSW of Susitna North, Alaska, USAUSGS
4.854 kmCentral Alaska, USAGFZ


Seismic station: Chulitna, AK, USA (CUT/AK network) | Distance from quake: 46 km / 28 mi | Show on map | Station Info
Seismic station Chulitna, AK, USA: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.2-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (8)

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.
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Send your own user report!
near Susitna North, Matanuska-Susitna, Alaska (6.6 km NNW of epicenter) [Map] / Light shaking (MMI IV) / 5-10 s : Very light shaking, increasing to like a wiggle with a little jerk. Definitely felt, and heard creaking. | One user found this interesting.  
Anchorage / Very weak shaking (MMI II) / rattling, vibrating / 5-10 s : Was sitting on the bed on the 4th floor of my hotel room | One user found this interesting.  
near Alaska City, Anchorage (99.9 km S of epicenter) [Map] / Weak shaking (MMI III) (reported through our app)
Lakes, Matanuska-Susitna, Alaska (60.9 km SE of epicenter) [Map] / Light shaking (MMI IV)
BIG LAKE (57 km S of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Tanaina, Alaska (50.2 km SE of epicenter) [Map] / Light shaking (MMI IV)
Girdwood, Anchorage, Alaska (125.6 km SSE of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Talkeetna / Light shaking (MMI IV)

Earlier earthquakes in the same area

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