Quake info: Mag. 4.1 earthquake

Mag. 4.1 earthquake  - , Chechen Republic, 3.3 km southeast of Alkhan-Yurt (Russia), Georgia, on Sunday, 13 Dec 2:50 am (GMT +3)

Light magnitude 4.1 earthquake at 20 km depth

13 Dec 00:02 UTC: First to report: EMSC after 12 minutes.

13 Dec 00:08: Magnitude recalculated from 4.0 to 4.1. Epicenter location corrected by 18 km (11 mi) towards ENE.

13 Dec 05:30: Hypocenter depth recalculated from 10.0 to 20.0 km (from 6.2 to 12.4 mi). Epicenter location corrected by 1.6 km (1 mi) towards W.

13 Dec 07:56: Epicenter location corrected by 18 km (11 mi) towards S.

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Date & time: 12 Dec 2020 23:50:22 UTC –

Local time at epicenter: Sunday, 13 Dec 2:50 am (GMT +3)

Magnitude: 4.1

Depth: 20.0 km

Epicenter latitude / longitude: 43.22°N / 45.61°E (Chechen Republic, Russia)

Nearest volcano: Kasbek (103 km / 64 mi)

Nearby towns and cities:

3 km (2 mi) ESE of Alkhan-Yurt (Chechnya) (pop: 8,880) See nearby quakes!

3 km (2 mi) ESE of Alkhan-Yurt (pop: 8,880) [quakes]

12 km (7 mi) NNE of Urus-Martan (Chechnya) (pop: 41,500) [quakes]

12 km (7 mi) SSW of Grozny (Chechnya) (pop: 226,100) [quakes]

15 km (10 mi) NW of Staryye Atagi (Shalinsky District, Chechnya) (pop: 10,200) [quakes]

16 km (10 mi) ESE of Zakan-Yurt (Achkhoy-Martanovsky District, Chechnya) (pop: 4,940) [quakes]

23 km (14 mi) WSW of Argun (Chechnya) (pop: 28,100) [quakes]

25 km (16 mi) WNW of Shali (Chechnya) (pop: 25,000) [quakes]

27 km (17 mi) E of Achkhoy-Martan (Chechnya) (pop: 16,800) [quakes]

79 km (49 mi) ENE of Vladikavkaz (North Ossetia) (pop: 317,400) [quakes]

Weather at epicenter at time of quake:

Mist 1°C (34 F), humidity: 95%, wind: 1 m/s (2 kts) from WNW

Primary data source: EMSC

Estimated released energy: 8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 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.

Magnitude Depth Location Source
M 4.1 18 km Caucasus Region, Russia, Georgia USGS

User reports for this quake (6)


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6.8 km S of epicenter [Map] / Weak shaking (MMI III)

Grozny / Very weak shaking (MMI II) / single vertical bump / 2-5 s

Vladikavkaz / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s : We were sleeping while the bed started to shake lightly for a few seconds

Быллым / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s

Урус Мартан / Strong shaking (MMI VI) / rattling, vibrating : Страшно было

Urus_Martan / Light shaking (MMI IV) / rattling, vibrating / 10-15 s

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Earlier earthquakes in the same area since 1900

Mag. 4.1 earthquake – , Chechen Republic, 3.3 km southeast of Alkhan-Yurt (Russia), Georgia, on Sunday, 13 Dec 2:50 am (GMT +3)

Map of earlier quakes

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