Sismo debile mag. 2.3 - 4 Km SW of Darrington, Washington, USA, giovedì, 22 aprile 2021 -

Sismo debile mag. 2.3 - 4 Km SW of Darrington, Washington, USA, giovedì, 22 aprile 2021

Sismo debile magnitudine 2.3 at 8 km depth

22 Apr 04:06 UTC: Primo a segnalare: USGS dopo 4 minuti.
22 Apr 04:48: Magnitudine ricalcolata da 2.5 a 2.3. Profondità ricalcolata da 10.0 a 7.7 km (da 6.2 a 4.8 mi). Posizione dell'epicentro corretta di 63 km (39 mi) al NO.
Data & ora: 22 Apr 2021 04:02:37 UTC -
Magnitudine: 2.3
Profondità: 7.7 km
Epicentro latitudine / longitudine: 48.23133°N / 121.655°W (Washington, Stati Uniti)
Vulcano più vicino: Glacier Peak (39 km / 24 mi)
Nearby towns and cities:
5 km SO da Darrington (pop: 1,380) --> Vedi sismi vicini
35 km E da Arlington (pop: 18,900) --> Vedi sismi vicini
39 km NE da Lake Stevens (pop: 30,900) --> Vedi sismi vicini
42 km NE da West Lake Stevens (pop: 21,000) --> Vedi sismi vicini
42 km NE da West Lake Stevens (pop: 21,000) --> Vedi sismi vicini
44 km ENE da Marysville (pop: 66,800) --> Vedi sismi vicini
48 km NNE da Monroe (Washington) (Snohomish County) (pop: 18,100) --> Vedi sismi vicini
49 km NE da Everett (pop: 108,000) --> Vedi sismi vicini
80 km NNE da Bellevue (pop: 139,800) --> Vedi sismi vicini
86 km NE da Seattle (pop: 684,500) --> Vedi sismi vicini
Fonte dati primaria: USGS (United States Geological Survey)
Stima dell'energia sismica liberata: 1.8 x 108 joules (49.4 kilowatt hours) 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.
Mag.ProfonditàUbicazioneFonte
2.37.7 km4 Km SW of Darrington, Washington, USAUSGS
2.38 kmWASHINGTON, USAEMSC

User reports for this quake (6)

At magnitude 2.3, such a quake wouldn't normally be felt by people except under very favorable conditions.
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Darrington / not felt : Heard about it from neighbors today 4.25.2021  
In bed at home. / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : We live in a mobile home. It woke me up. It woke my Husband up too. It felt like someone was shaking our bed.  
770 Madison Avenue Darrington Washington 98241 / Weak shaking (MMI III) / rattling, vibrating / 2-5 s
13.7 km NW of epicenter [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
36014 324 St NE / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s : My roof creaked and I heard a rumble.  
4.4 km NE of epicenter [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
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