Terremoto moderato mag. 5.4 - North Pacific Ocean, 55 km a sud da Shikotan, Sakhalin Oblast, Russia, sábbato, 20 febbraio 2021 -

Terremoto moderato mag. 5.4 - North Pacific Ocean, 55 km a sud da Shikotan, Sakhalin Oblast, Russia, sábbato, 20 febbraio 2021

Terremoto moderato magnitudine 5.4 at 60 km depth

20 Feb 13:31 UTC: Primo a segnalare: EMSC dopo 8 minuti.
20 Feb 13:35: Magnitudine ricalcolata da 5.0 a 5.2. Profondità ricalcolata da 50.0 a 67.0 km (da 31 a 42 mi). Posizione dell'epicentro corretta di 16 km (10 mi) al ENE.
... [show all] ...
20 Feb 14:11: Posizione dell'epicentro corretta di 1.4 km (0.9 mi) al NO.
Update Sat, 20 Feb 2021, 13:39
Significant magnitude 5.3 quake hits 16 km southeast of Shikotan, Russia late at night
5.3 quake 20 Feb 11:23 pm (GMT +10)
5.3 quake 20 Feb 11:23 pm (GMT +10)
A shallow magnitude 5.3 earthquake was reported late at night near Shikotan, Sakhalin Oblast, Russia.
According to the European-Mediterranean Seismological Centre (EMSC), the quake hit on Saturday 20 February 2021 at 11:23 pm local time at a shallow depth of 10 km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. 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 German Research Centre for Geosciences (GFZ) which listed the quake at magnitude 5.2.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Shikotan (pop. 2,100) located 16 km from the epicenter, the quake should have been felt as light shaking.
Weak shaking might have been felt in Yuzhno-Kurilsk (pop. 6,500) located 89 km from the epicenter, Otrada (pop. 3,200) 91 km away, and Nemuro (pop. 31,200) 114 km 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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Earthquake data:

Data & ora: 20 Feb 2021 13:23:27 UTC -
Ora locale a epicentro: Saturday, 20 Feb 2021 23:23 (GMT +10)
Magnitudine: 5.4
Profondità: 60.0 km
Epicentro latitudine / longitudine: 43.33°N / 146.92°E (North Pacific Ocean, Russia)
Vulcano più vicino: Mendeleev (113 km / 70 mi)
Nearby towns and cities:
55 km SSE da Shikotan (pop: 2,100) --> Vedi sismi vicini
109 km E da Nemuro (Giappone) (pop: 31,200) --> Vedi sismi vicini
115 km SE da Yuzhno-Kurilsk (pop: 6,470) --> Vedi sismi vicini
149 km ESE da Shibetsu (Giappone) (pop: 21,700) --> Vedi sismi vicini
210 km ENE da Kushiro (Giappone) (pop: 183,600) --> Vedi sismi vicini
227 km ESE da Abashiri (Giappone) (pop: 42,500) --> Vedi sismi vicini
250 km E da Kitami (Giappone) (pop: 113,100) --> Vedi sismi vicini
305 km E da Obihiro (Giappone) (pop: 173,900) --> Vedi sismi vicini
491 km SE da Korsakov (pop: 35,100) --> Vedi sismi vicini
520 km SE da Južno-Sachalinsk (pop: 176,500) --> Vedi sismi vicini
53 km SSE da Shikotan Island (pop: 2,100) --> Vedi sismi vicini
124 km SE da Kunajiri Island (pop: 7,000) --> Vedi sismi vicini
324 km E da Hokkaido Island (pop: 5,500,000) --> Vedi sismi vicini
Weather at epicenter at time of quake:
Overcast Clouds 2.5°C (36 F), humidity: 81%, wind: 13 m/s (26 kts) from WSW
Fonte dati primaria: EMSC (European-Mediterranean Seismological Centre)
Stima dell'energia sismica liberata: 7.9 x 1012 joules (2.21 gigawatt hours, equivalent to 1898 tons of TNT or 0.1 atomic bombs!) More info
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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!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake 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.
5.267 kmKuril Islands, RussiaGFZ
5.448 km54 Km SSE of Shikotan, RussiaUSGS
5.056 kmKuril Islands, RussiaGeoAu

User reports for this quake (3)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Южно-Курильск (126.2 km WNW of epicenter) [Map] / Light shaking (MMI IV)
Moscow / Very weak shaking (MMI II)
Южно-Курильск / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Volcanoes & Earthquakes - new app for Android


More info
Recorded aftershocks, latest first (5 quakes):
  • 21 Apr 2021 10:54 UTC
    | M 2.9 |
    43.9 km (27.3 mi) depth
    22 km (14 mi) distance
    | NIED | Details
  • 23 Mar 2021 23:13 UTC
    | M 3.4 |
    4.1 km (2.5 mi) depth
    21 km (13 mi) distance
    | NIED | Details
  • 13 Mar 2021 04:42 UTC
    | M 3.0 |
    18 km (11.2 mi) depth
    2 km (1 mi) distance
    | NIED | Details
  • 06 Mar 2021 01:52 UTC
    | M 3.3 |
    18.2 km (11.3 mi) depth
    2 km (1 mi) distance
    | NIED | Details
  • 24 Feb 2021 08:52 UTC
    | M 3.0 |
    23.5 km (14.6 mi) depth
    24 km (15 mi) distance
    | NIED | Details

Earlier earthquakes in the same area since 1900

Map of earlier quakes

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