Séisme faible mag. 3.5 - Océan Pacifique Nord, 15 km à l'ouest de Ventura, Californie, États-Unis, mercredi, 8 déc. 2021 22:38 (GMT -8) -

Séisme faible mag. 3.5 - Océan Pacifique Nord, 15 km à l\'ouest de Ventura, Californie, États-Unis, mercredi,  8 déc. 2021 22:38 (GMT -8) Séisme faible mag. 3.5 - Océan Pacifique Nord, 15 km à l\'ouest de Ventura, Californie, États-Unis, mercredi,  8 déc. 2021 22:38 (GMT -8)

Séisme faible magnitude 3.5 à 7.3 km de profondeur

9 Dec 06:39 UTC: Premier à signaler: VolcanoDiscovery après 1 minute.
9 Dec 06:40: Maintenant en utilisant une nouvelle source de données: RaspberryShake
9 Dec 06:40: Maintenant en utilisant une nouvelle source de données: USGS
9 Dec 15:14: Magnitude recalculée de 3.4 à 3.5. Profondeur recalculée de 9.7 à 7.3 km (de 6 à 4.5 mi). Emplacement de l'épicentre corrigé de 2.6 km (1.6 mi) au SSE.
Update Thu, 9 Dec 2021, 06:45
Small tremor of magnitude 3.4 just reported 10 miles northwest of Ventura, California, United States
3.4 quake 8 Dec 10:38 pm (GMT -8)
3.4 quake 8 Dec 10:38 pm (GMT -8)
A very shallow magnitude 3.4 earthquake was reported late at night near Ventura, Ventura County, California, USA.
According to the United States Geological Survey, the quake hit on Wednesday, December 8th, 2021, at 10:38 pm local time at a very shallow depth of 6 miles. 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 European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 3.4 as well.
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 Carpinteria (pop. 13,700) located 5 miles from the epicenter.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Ventura (pop. 96,800) located 10 miles from the epicenter, Santa Barbara (pop. 91,800) 15 miles away, Oxnard (pop. 207,300) 19 miles away, Port Hueneme (pop. 22,400) 20 miles away, Goleta (pop. 30,900) 22 miles away, Santa Paula (pop. 30,500) 23 miles away, Isla Vista (pop. 23,100) 23 miles away, and Camarillo (pop. 67,600) 26 miles away. In Valencia (pop. 148,500, 49 miles away), the quake was probably not felt.
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Earthquake data

Détails du séisme

Date et l'heure9 Dec 2021 06:38:13 UTC -
Heure locale à l'épicentremercredi, 8 déc. 2021 22:38 (GMT -8)
StatutConfirmé
Magnitude3.5
Profondeur7.3 km
Épicentre latitude / longitude34.3185°N / 119.45267°W (Océan Pacifique Nord, Californie, États-Unis)
Antipode34.319°S / 60.547°E
Intensité d'agitationSecousses faibles
Senti67 rapports
Source de données principaleUSGS (United States Geological Survey)
Volcan le plus prèsCoso (241 km / 150 mi)
Lieux à proximité11 km SE de Carpinteria (Santa Barbara County) (pop: 13,700) | Carte | Séismes à proximité
15 km ONO de Ventura (pop: 96,800) | Carte | Séismes à proximité
25 km ESE de Santa Barbara (pop: 91,800) | Carte | Séismes à proximité
29 km ONO de Oxnard (pop: 207,300) | Carte | Séismes à proximité
30 km NO de Port Hueneme (Ventura County) (pop: 22,400) | Carte | Séismes à proximité
36 km O de Santa Paula (Ventura County) (pop: 30,500) | Carte | Séismes à proximité
37 km ESE de Goélette (Santa Barbara County) (pop: 30,900) | Carte | Séismes à proximité
39 km ESE de Isla Vista (Santa Barbara County) (pop: 23,100) | Carte | Séismes à proximité
40 km ONO de Camarillo (pop: 67,600) | Carte | Séismes à proximité
79 km O de Valencia (pop: 148,500) | Carte | Séismes à proximité
Météo à l'épicentre au moment du séismeFew Clouds 14°C (57 F), humidity: 83%, wind: 0 m/s (1 kts) from W
Énergie sismique estimée libérée1.1 x 1010 joules (3.12 MWh, équivalent à 2.68 tonnes de TNT) | about seismic energy
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Si vous avez ressenti ce tremblement de terre (ou si vous étiez près de l'épiccentre), merci de partager votre expérience et envoyer un témoignage "Je l'ai ressenti !" D'autres utilisateurs aimeraient le lire !
Si vous n'avez pas ressenti le séisme même si vous étiez dans la zone, signalez-le aussi, s-v-p! Votre contribution est précieuse pour la science des tremblements de terre, l'analyse des risques sismiques et les efforts d'atténuation. Vous pouvez utiliser l'emplacement de votre appareil ou la carte pour indiquer l'endroit où vous étiez pendant le séisme. Merci!

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
3.57.3 km11km SE of Carpinteria, CAUSGS
3.57.3 kmSouthern CaliforniaRaspberryShake
3.310 kmSANTA BARBARA CHANNEL, CALIF.EMSC

Témoignages pour ce séisme (68)

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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Carpinteria California (11 km NW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Laying in bed. My bed felt like I was rocking side to side/ up n down. My bedroom door had a rattling sweep through as though a giant gust of wind blew thru the house. | One user found this interesting.  
4586 El Caro Lane, Carpinteria, CA 93013 (10.9 km NW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s : I was siting in my recliner, heard then felt a short shake and a rumble sound with some house creaking. None of the hanging items in the family room showed any signs of movment(Christmas stockings & pendent lights). I feel a little disoriented, but that m | One user found this interesting.  
Ventura Ca 93001 (42.9 km NW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s : Up and down 3-5 times | 2 users found this interesting.  
Ventura, CA (21.9 km ESE of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 1-2 s : Big hard jolt and daughter ran in my room | One user found this interesting.  
Ventura, CA (21.9 km ESE of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 1-2 s : Big hard jolt and daughter ran in my room | One user found this interesting.  
Carpinteria (13 km NW of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / very short : Shaking 2 sevonds. East to west | One user found this interesting.  
Ventura ca / Weak shaking (MMI III) / horizontal (sideways) swinging / 1-2 s : Dizzy | One user found this interesting.  
Carpinteria / Light shaking (MMI IV) / complex motion difficult to describe / 5-10 s : Shaking!! | One user found this interesting.  
Ventura (14.7 km ESE of epicenter) [Map] / not felt : I was in bed and felt the room moving side to side very slowly  
Ventura (22.2 km ESE of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / 2-5 s : Laying in bed. Felt a quick jolt then sway.  
Ventura (22.2 km ESE of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / 2-5 s : Laying in bed. Felt a quick jolt then sway.  
Ventura (22.2 km ESE of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / 2-5 s : Laying in bed. Felt a quick jolt then sway.  
Ventura, California (16.3 km E of epicenter) [Map] / Weak shaking (MMI III) / vibration and rolling / 2-5 s : Slight roll and bump  
Carpinteria, CA (10.7 km ESE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
2nd floor at home (4.9 km N of epicenter) [Map] / Weak shaking (MMI III) / single vertical bump / very short
Carpinteria California (8.1 km N of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 10-15 s : I was in bed and the bed shook hard.  
Ventura, California (6 km E of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 2-5 s : Single jolt followed by creaking of 1962 wood frame house. Sounded like something fell on roof.  
Ventura (17.7 km ESE of epicenter) [Map] / Weak shaking (MMI III) : I mostly heard Windows shaking and I knew something was happening  
Carpinteria, Santa Barbara (6.4 km NNE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s
Ventura (22.2 km ESE of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / 2-5 s : Laying in bed. Felt a quick jolt then sway.  
Carpinteria (11.8 km NW of epicenter) [Map] / Light shaking (MMI IV) : Sleeping  
La conchita california (5.2 km N of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s
Toro Canyon, Santa Barbara, California (15.2 km NW of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / 2-5 s : Sitting on couch watch TV, felt good sized jolt, no real shaking or rolling!  
93003 (21.4 km ESE of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 2-5 s
Ventura ca 93004 (16.9 km E of epicenter) [Map] / Weak shaking (MMI III) / very short : Like a small jolt  
GOLETA (50.1 km NW of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s
Carpinteria, CA (10.9 km NW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s
Carpinteria (11.9 km NW of epicenter) [Map] / Light shaking (MMI IV) / single vertical bump / 1-2 s : Building had a sudden upward surge and shake  
Ventura (14.6 km E of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / very short
Ventura, California (23.9 km ESE of epicenter) [Map] / Weak shaking (MMI III) / vibration and rolling / very short : Watching TV 10:38 PM  
Santa Barbara, California (26.6 km WNW of epicenter) [Map] / Weak shaking (MMI III)
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