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Moderate mag. 4.2 earthquake - 38 km west of Махачкала, Dagestan, Russia, on Friday, Dec 3, 2021 at 2:22 am (GMT +3) -

Moderate mag. 4.2 earthquake - 38 km west of Махачкала, Dagestan, Russia, on Friday, Dec 3, 2021 at 2:22 am (GMT +3) Moderate mag. 4.2 earthquake - 38 km west of Махачкала, Dagestan, Russia, on Friday, Dec 3, 2021 at 2:22 am (GMT +3)

Moderate magnitude 4.2 earthquake at 2 km depth

2 Dec 23:28 UTC: First to report: VolcanoDiscovery after 6 minutes.
3 Dec 00:56: Now using data updates from EMSC
3 Dec 04:36: Hypocenter depth recalculated from 5.0 to 2.0 km (from 3.1 to 1.2 mi). Epicenter location corrected by 11 km (6.9 mi) towards N.

Earthquake details

Date & timeDec 2, 2021 23:22:56 UTC -
Local time at epicenterFriday, Dec 3, 2021 at 2:22 am (GMT +3)
StatusConfirmed
Magnitude4.2
Depth2.0 km
Epicenter latitude / longitude43.09°N / 47.06°E (Dagestan, Russia)
Antipode43.09°S / 132.94°W
Shaking intensityLight shaking
Felt35 reports
Primary data sourceEMSC (European-Mediterranean Seismological Centre)
Nearest volcanoKasbek (213 km / 132 mi)
Nearby towns and cities3 km (2 mi) SW of Uchkent (pop: 3,380) | Show on map | Quakes nearby
16 km (10 mi) NNE of Chirkey (Buynaksky District) (pop: 7,960) | Show on map | Quakes nearby
18 km (11 mi) SE of Kizilyurt (pop: 33,400) | Show on map | Quakes nearby
20 km (12 mi) ENE of Dubki (Kazbekovsky District) (pop: 5,580) | Show on map | Quakes nearby
23 km (14 mi) W of Shamkhal (Gorod Makhachkala) (pop: 8,380) | Show on map | Quakes nearby
27 km (17 mi) WNW of Leninkent (pop: 13,900) | Show on map | Quakes nearby
31 km (19 mi) N of Buynaksk (pop: 62,700) | Show on map | Quakes nearby
38 km (24 mi) WNW of Махачкала (Дагестан) (pop: 498,000) | Show on map | Quakes nearby
42 km (26 mi) ESE of Khasavyurt (pop: 126,800) | Show on map | Quakes nearby
53 km (33 mi) WNW of Kaspiysk (pop: 81,800) | Show on map | Quakes nearby
Estimated seismic energy released1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 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.
Mag.DepthLocationSource
4.22 kmCAUCASUS REGION, RUSSIAEMSC

Seismograms

Seismic station: Garni, Armenia (GNI/IU network) | Distance from quake: 380 km / 236 mi | Show on map | Station Info
Seismic station Garni, Armenia: 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 (37)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Махачкала / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Лежал себе спокойно, никого не трогал и внезапно услышал вибрирующий шум, а затем поучаствовал, как кровать начала дрожать, затем предметы, | 3 users found this interesting.  
  • Один раз сильно шатнулась кровать, и окна хрустнули
г. Буйнакск, был дома на 3 эт / Very weak shaking (MMI II) / single lateral shake / 2-5 s : Лёгкое покачивания, люстра не дёрнулась, но толчок ощутили. | One user found this interesting.  
Махачкала, Дагестан (42.5 km ESE of epicenter) [Map] / Very weak shaking (MMI II) / vibration and rolling / 2-5 s : Я спала . проснулась от скрипа шкафа , чувствовала что трясет . сплю не крепко .потому чувствую .  
Буйнакск Дагестан (3957.8 km NE of epicenter) [Map] / Weak shaking (MMI III) / 2-5 s : Страшно | One user found this interesting.  
Буйнакс с Халимбекаул (27.7 km SSE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 1-2 s : Лежала | One user found this interesting.  
Буйнакс с Халимбекаул (27.7 km SSE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 1-2 s : Лежала | One user found this interesting.  
Чиркей (15.4 km SSW of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 1-2 s : Проснулась | One user found this interesting.  
Korkmaskala (19.6 km ESE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s : Was sleeping | One user found this interesting.  
Махачкала (32.5 km ESE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s : Ощущение не из приятных | One user found this interesting.  
Абакан / Weak shaking (MMI III) / rattling, vibrating / 10-15 s : небольшие толчки, трясся диван , стол, полы дрожали | One user found this interesting.  
махачкала / Light shaking (MMI IV) / vibration and rolling / 2-5 s : страшно, очень | One user found this interesting.  
Махачкала, Дагестан (40 km ESE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / very short
Makhachkala (42 km ESE of epicenter) [Map] / Weak shaking (MMI III)
Buynaksk, Dagestan (32.1 km S of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Каспийск (52.8 km ESE of epicenter) [Map] / not felt
Kyakhulay, Dagestan (37.1 km ESE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 1-2 s
Махачкала п. Красноармейск (29 km ESE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Махачкала (35.4 km ESE of epicenter) [Map] / Weak shaking (MMI III) / 1-2 s
Махачкала Магомеда Яракско (32.5 km SE of epicenter) [Map] / not felt
Buynaksk, Dagestan (32.1 km S of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Махачкала (36 km ESE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s
Makhachkala (42 km ESE of epicenter) [Map] / Weak shaking (MMI III)
С.Нижнеее Казанище (37.1 km SSE of epicenter) [Map] / Light shaking (MMI IV) / vibration and rolling / 2-5 s
Makhachkala (40.8 km ESE of epicenter) [Map] / Very weak shaking (MMI II) / vibration and rolling / 2-5 s
Makhachkala / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s
Респ Дагестан, г Махачкала / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s : Звон посуды в серванте, и легкая тряска дивана  
Makhachkala / Very weak shaking (MMI II) / single lateral shake / very short
Инчха / Moderate shaking (MMI V) / vibration and rolling / 1-2 s
Буйнакск / Light shaking (MMI IV) / 5-10 s
Makhachkala / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Махачкала / Weak shaking (MMI III) / both vertical and horizontal swinging / 2-5 s
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