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Séisme modéré mag. 4.2 - 24 km au nord-est de Sétif, Setif, Algérie, dimanche, 28 nov. 2021 09:52 (GMT +1) -

Séisme modéré mag. 4.2 - 24 km au nord-est de Sétif, Setif, Algérie, dimanche, 28 nov. 2021 09:52 (GMT +1) Séisme modéré mag. 4.2 - 24 km au nord-est de Sétif, Setif, Algérie, dimanche, 28 nov. 2021 09:52 (GMT +1)

Séisme modéré magnitude 4.2 à 10 km de profondeur

28 Nov 08:55 UTC: Premier à signaler: VolcanoDiscovery après 3 minutes.
28 Nov 09:12: Maintenant en utilisant une nouvelle source de données: EMSC
Update Sun, 28 Nov 2021, 09:18

Moderate earthquake of magnitude 4.2 just reported 24 km northeast of Setif, Algeria

4.2 quake 24 km northeast of Setif, Algeria, Nov 28, 2021 9:52 am (GMT +1)
4.2 quake 24 km northeast of Setif, Algeria, Nov 28, 2021 9:52 am (GMT +1)
Just 26 minutes ago, a 4.2-magnitude earthquake struck near Setif, Algeria. The tremor was recorded in the morning on Sunday, November 28th, 2021, at 9:52 am local time, at a shallow depth of 10 km below the surface.
The event was filed by the European-Mediterranean Seismological Centre (EMSC), the first seismological agency to report it.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in BABOR - VILLE (pop. 33,000) located 13 km from the epicenter, Setif (pop. 288,500) 24 km away, El Eulma (pop. 128,400) 27 km away, Aïn Arnat (pop. 35,100) 30 km away, and Lafayette (pop. 38,600) 42 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Rouached (pop. 40,300) located 44 km from the epicenter, Chateaudun (pop. 71,700) 59 km away, Râs el Oued (pop. 56,700) 67 km away, and Constantine (pop. 450,100) 94 km away.

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Détails du séisme

Date et l'heure28 Nov 2021 08:52:32 UTC -
Heure locale à l'épicentredimanche, 28 nov. 2021 09:52 (GMT +1)
StatutConfirmé
Magnitude4.2
Profondeur10.0 km
Épicentre latitude / longitude36.37°N / 5.56°E (Setif, Algérie)
Antipode sismique36.37°S / 174.44°W
Intensité d'agitationSecousses faibles
Senti19 rapports
Source de données principaleEMSC (European-Mediterranean Seismological Centre)
Lieux à proximité13 km S de BABOR - VILLE (Babor, Sétif) (pop: 33,000) | Carte | Séismes à proximité
24 km NNE de Sétif (pop: 288,500) | Carte | Séismes à proximité
27 km NNO de El Eulma (Sétif) (pop: 128,400) | Carte | Séismes à proximité
30 km NE de Aïn Arnat (Sétif) (pop: 35,100) | Carte | Séismes à proximité
42 km E de Lafayette (Sétif) (pop: 38,600) | Carte | Séismes à proximité
44 km OSO de Rouached (Mila) (pop: 40,300) | Carte | Séismes à proximité
59 km ONO de Chateaudun (Mila) (pop: 71,700) | Carte | Séismes à proximité
67 km NE de Râs el Oued (Bordj Bou Arréridj) (pop: 56,700) | Carte | Séismes à proximité
94 km O de Constantine (pop: 450,100) | Carte | Séismes à proximité
225 km E de Algiers (Alger) (pop: 1,977,700) | Carte | Séismes à proximité
Météo à l'épicentre au moment du séismeOvercast Clouds 5.8°C (42 F), humidity: 62%, wind: 8 m/s (15 kts) from NW
Énergie sismique estimée libérée1.3 x 1011 joules (35 MWh, équivalent à 30.1 tonnes de TNT) | about seismic energy
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Données pour le même séisme indiquées par différentes agences

Info : Plus les agences signalent le même séisme et publient des données similaires, plus vous pouvez avoir confiance dans les données. Il faut normalement jusqu'à quelques heures pour que les paramètres sismiques soient calculés avec une précision quasi optimale.
Mag.ProfondeurLieuSource
4.210 kmNear Bejaia, Bejaïa, AlgeriaEMSC
4.20 kmAlgeria: NE SETIF.ARGIGN

Seismograms

Seismic station: Villasalto, Italy (VSL/MN network) | Distance from quake: 483 km / 300 mi | Show on map | Station Info
Seismic station Villasalto, Italy: 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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Témoignages pour ce séisme (21)

Les rapports des utilisateurs estiment l'intensité perçue des secousses du sol en fonction de l' Échelle MMI (Modified Mercalli Intensity Scale).
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Jijel (53.7 km NNE of epicenter) [Map] / not felt : Je ne l'ai pas senti à Jijel cirque. (reported through our app)  
Setif (22.3 km SW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / very short : at 09:52 gmt+1  
Colmar, Bejaïa (66.1 km NW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Weak shaking  
near BABOR - VILLE, Sétif (33.6 km NNW of epicenter) [Map] / Weak shaking (MMI III) / 2-5 s
Setif (23.6 km SSW of epicenter) [Map] / Weak shaking (MMI III) / single vertical bump / 1-2 s
Sétif, Algeria (25.8 km SSW of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / very short
near Bejaia (38.9 km NW of epicenter) [Map] / Weak shaking (MMI III) / 2-5 s
Bejaia (62.4 km NW of epicenter) [Map] / Very weak shaking (MMI II) / 1-2 s
near Bejaia (39.1 km NW of epicenter) [Map] / Very weak shaking (MMI II) : Very weak quake  
Setif / Weak shaking (MMI III) / horizontal (sideways) swinging / 1-2 s
Setif / Weak shaking (MMI III) / horizontal (sideways) swinging / 1-2 s
Setif / Weak shaking (MMI III) / horizontal (sideways) swinging / 1-2 s
Bejaia / Moderate shaking (MMI V) / 2-5 s : Plus peur que de mal (reported through our app)  
tazmalt. BEJAIA / not felt
Bejaia / Light shaking (MMI IV) / single vertical bump / 1-2 s
سطيف / Strong shaking (MMI VI) / 5-10 s (reported through our app)
Setif / Weak shaking (MMI III) / horizontal (sideways) swinging / 1-2 s
Setif / Light shaking (MMI IV) / 1-2 s
Setif / Very weak shaking (MMI II) / single lateral shake / 1-2 s
setif / Weak shaking (MMI III) / horizontal (sideways) swinging / 1-2 s
Ziama mansoriah / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s
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Earlier earthquakes in the same area

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