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Leggero terremoto magnitudine 4.1 - 40 Km N of Valdez, Alaska (USA) domenica, 13 settembre 2020

Leggero terremoto magnitudine 4.1 - 40 Km N of Valdez, Alaska (USA) domenica, 13 settembre 2020
13 Sep 15:15 UTC: Primo a segnalare: EMSC dopo 6 minuti.
13 Sep 15:15: Ora utilizzando nuova fonte di dati: USGS
... [show all] ...
13 Sep 15:33: Magnitudine ricalcolata da 4.3 a 4.1. Profondità ricalcolata da 21.6 a 31.7 km (da 13.4 a 19.7 mi). Posizione dell'epicentro corretta di 2.4 km (1.5 mi) al NE.
Data & ora: Sunday, 13 September 2020 15:10 UTC
Magnitudine: 4.1
Profondità: 31.7 km
Epicentro latitudine / longitudine: 61.4924°N / 146.3972°W (Alaska, United States)
Vulcano più vicino: Wrangell (140 km / 87 mi)
Nearby towns and cities:
40 km N da Valdez (pop: 3,900)
59 km SE da Nelchina (pop: 100)
67 km SW da Tonsina (pop: 100)
170 km E da Eagle River (pop: 24,800)
170 km E da Knik-Fairview (pop: 14,900)
189 km E da Anchorage (pop: 298,700)
Fonte dati primaria: USGS
Stima dell'energia sismica liberata: 8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) [saperne di più]
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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.
Data / oraMag. / ProfonditàUbicazioneFonte
Sun, 13 Sep 15:10 UTCM 4.1 / 31.7 km40 Km N of Valdez, Alaska (USA)USGS
Sun, 13 Sep 15:10 UTCM 4.1 / 32 kmSouthern Alaska (USA)EMSC

User reports for this quake (12)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Leave a comment if you find a particular report interesting or want to add to it.
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154.3 km W of epicenter [Map] / Very weak shaking (MMI II) / 1-2 s (reported through our app)
155 km W of epicenter [Map] / Weak shaking (MMI III) (reported through our app)
194.6 km W of epicenter [Map] / Very weak shaking (MMI II) / very short (reported through our app)
Anchorage, Alaska (182 km W of epicenter) [Map] / Very weak shaking (MMI II) (reported through our app)
Valdez, AK (38.7 km S of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 5-10 s
147 km W of epicenter [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Wasilla (155.7 km W of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Valdez / Moderate shaking (MMI V) / 1-2 s : A couple moderate jolts. I was in Anchorage Alaska during 1964 quake. This no comparison but they always scare me | 2 users found this interesting.
Palmer Alaska / Light shaking (MMI IV) / 2-5 s
Palmer Alaska / Very weak shaking (MMI II) / single lateral shake / very short
Valdez, Alaska / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Palmer Alaska / Light shaking (MMI IV) : Woke me up. Good light shake.

Earlier earthquakes in the same area since 1900

Light mag. 4.1 earthquake - 40 Km N of Valdez, Alaska (USA) on Sunday, 13 September 2020

Map of earlier quakes

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