Séisme modéré mag. 4.2 - 43 km au nord de Santa Rosa, Comté de Sonoma County, Californie, États-Unis, mardi, 28 juin 2022 04:57 (GMT -7) -

Séisme modéré mag. 4.2 - 43 km au nord de Santa Rosa, Comté de Sonoma County, Californie, États-Unis, mardi, 28 juin 2022 04:57 (GMT -7) Séisme modéré mag. 4.2 - 43 km au nord de Santa Rosa, Comté de Sonoma County, Californie, États-Unis, mardi, 28 juin 2022 04:57 (GMT -7)

Séisme modéré magnitude 4.2 à 0.5 km de profondeur

28 Jun 12:01 UTC: Premier à signaler: USGS après 4 minutes.
28 Jun 12:03: Magnitude recalculée de 3.8 à 4.2.
28 Jun 16:32: Profondeur recalculée de 0.3 à 0.5 km (de 0.2 à 0.3 mi).
Update Tue, 28 Jun 2022, 12:09
Moderate magnitude 4.2 earthquake 27 miles north of Santa Rosa, California, United States
4.2 quake 28 Jun 4:57 am (GMT -7)
4.2 quake 28 Jun 4:57 am (GMT -7)
Just 11 minutes ago, a 4.2-magnitude earthquake struck near Santa Rosa, Sonoma County, California, USA. The tremor was recorded early morning on Tuesday, June 28th, 2022, at 4:57 am local time, at a very shallow depth of 0.2 miles below the surface.
The event was filed by the United States Geological Survey, the first seismological agency to report it.
A second report was later issued by the citizen-seismograph network of RaspberryShake, which listed it as a magnitude 4.2 earthquake as well. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 4.2.
Based on the preliminary seismic data, the quake should have been widely felt by almost everyone in the area of the epicenter. It might have caused light to moderate damage.
Moderate shaking probably occurred in Cobb (pop. 1,800) located 2 miles from the epicenter.
Weak shaking might have been felt in Clearlake (pop. 15,200) located 11 miles from the epicenter, Russian River (pop. 11,700) 17 miles away, Russian River (pop. 11,700) 17 miles away, Windsor (pop. 27,500) 20 miles away, and Santa Rosa (pop. 175,000) 27 miles away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Ukiah (pop. 15,900) located 33 miles from the epicenter, Rohnert Park (pop. 42,400) 34 miles away, and Petaluma (pop. 60,400) 42 miles away.
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Earthquake data

Détails du séisme

Date et l'heure28 Jun 2022 11:57:40 UTC -
Heure locale à l'épicentremardi, 28 juin 2022 04:57 (GMT -7)
Profondeur0.5 km
Épicentre latitude / longitude38.83017°N / 122.74717°W (Comté de Lake, Californie, États-Unis)
Antipode sismique38.83°S / 57.253°E
Intensité d'agitationSecousses légères
Senti8 rapports
Source de données principaleUSGS (United States Geological Survey)
Volcan le plus prèsClear Lake (16 km / 10 mi)
Lieux à proximité2 km ONO de Cobb (pop: 1,780) | Carte | Séismes à proximité
17 km O de Hidden Valley Lake (pop: 5,580) | Carte | Séismes à proximité
18 km SO de Clearlake (Lake County) (pop: 15,200) | Carte | Séismes à proximité
27 km NNE de Russian River (Sonoma County) (pop: 11,700) | Carte | Séismes à proximité
27 km NNE de Russian River (pop: 11,700) | Carte | Séismes à proximité
32 km N de Windsor (Sonoma County) (pop: 27,500) | Carte | Séismes à proximité
43 km N de Santa Rosa (pop: 175,000) | Carte | Séismes à proximité
112 km ONO de Sacramento (pop: 490,700) | Carte | Séismes à proximité
Météo à l'épicentre au moment du séismeClear Sky 11.4°C (53 F), humidity: 31%, wind: 3 m/s (5 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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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.
4.20.5 km2km WNW of Cobb, CAUSGS
4.20.5 kmNorthern CaliforniaRaspberryShake

Témoignages pour ce séisme (11)

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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Envoyez votre propre témoignage!
West Sacramento, CA / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s : Light, continuous shaking. I felt multiple smaller quakes a few times during the night. There was a big one felt at 1:55pm yesterday… | 9 users found this interesting.  
Loch Lomond, Ca (6.4 km NE of epicenter) [Map] / Light shaking (MMI IV) / complex motion difficult to describe / 1-2 s : Strong jolt like my 6’ male partner sitting very hard with his whole weight on the bed while I was sleeping. Woke me up. | 3 users found this interesting.  
Mountain home ranch rd. / Very weak shaking (MMI II) / single vertical bump / very short : Very short, quick, light shaking. | 2 users found this interesting. (reported through our app)  
Kelseyville / Light shaking (MMI IV) / horizontal (sideways) swinging / 20-30 s : It was decent small light shake and the house rumbled a bit causing bags to fall over. | One user found this interesting.  
Roseville, Placer, California (126.7 km E of epicenter) [Map] / not felt (reported through our app)
Silver Peak NV / not felt (reported through our app)
Little River CA / Light shaking (MMI IV) / single lateral shake / very short : felt house move sise-to-side (a tiny house on a trailer frame)  
San leandro / not felt (reported through our app)
Vacaville, CA / Very weak shaking (MMI II) / 1-2 s
cobb, CA / Moderate shaking (MMI V)
Geyserville, CA / Weak shaking (MMI III) / vibration and rolling / 1-2 s
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