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Séisme modéré mag. 4.3 - 60 km au sud-est de South Lake Tahoe, Comté d'El Dorado County, Californie, États-Unis, 8 Jul 10:10 pm (GMT -7)

Séisme modéré mag. 4.3 - 60 km au sud-est de South Lake Tahoe, Comté d\'El Dorado County, Californie, États-Unis, 8 Jul 10:10 pm (GMT -7) Séisme modéré mag. 4.3 - 60 km au sud-est de South Lake Tahoe, Comté d\'El Dorado County, Californie, États-Unis, 8 Jul 10:10 pm (GMT -7)

Séisme modéré magnitude 4.3 à 1.7 km de profondeur

9 Jul 05:12 UTC: Premier à signaler: USGS après 2 minutes.
9 Jul 05:14: Magnitude recalculée de 4.5 à 4.7. Profondeur recalculée de 8.0 à 1.7 km (de 5 à 1.1 mi). Emplacement de l'épicentre corrigé de 9.2 km (5.7 mi) au ENE.
9 Jul 05:15: Magnitude recalculée de 4.7 à 4.4.
9 Jul 05:39: Magnitude recalculée de 4.4 à 4.3.

Détails du séisme

Date et l'heure9 Jul 2021 05:10:35 UTC
Heure locale à l'épicentre8 Jul 10:10 pm (GMT -7)
StatutConfirmé
Magnitude4.3
Profondeur1.7 km
Épicentre latitude / longitude38.56384°N / 119.4815°W (Comté de Mono, Californie, États-Unis)
Antipode38.564°S / 60.519°E
Intensité d'agitationSecousses légères
Senti46 rapports
Source de données principaleUSGS (United States Geological Survey)
Volcan le plus prèsMono Lake (76 km / 47 mi)
Lieux à proximité2 km E de Coleville (California) (pop: 495) | Carte | Séismes à proximité
19 km S de Topaz Ranch Estates (pop: 1,500) | Carte | Séismes à proximité
27 km SSO de Smith Valley (pop: 1,600) | Carte | Séismes à proximité
43 km SSE de Gardnerville Ranchos (pop: 11,300) | Carte | Séismes à proximité
54 km SSO de Yerington (pop: 3,060) | Carte | Séismes à proximité
58 km SSE de Johnson Lane (Douglas County) (pop: 6,490) | Carte | Séismes à proximité
60 km SE de South Lake Tahoe (El Dorado County, California) (pop: 21,700) | Carte | Séismes à proximité
111 km SSE de Sparks (pop: 96,100) | Carte | Séismes à proximité
111 km SSE de Reno (pop: 241,400) | Carte | Séismes à proximité
175 km E de Sacramento (California) (pop: 490,700) | Carte | Séismes à proximité
Météo à l'épicentre au moment du séismeClear Sky 19.2°C (66 F), humidity: 40%, wind: 3 m/s (7 kts) from SSW
Énergie sismique estimée libérée1.8 x 1011 joules (49.4 MWh, équivalent à 42.5 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
4.31.7 km27km SSW of Smith Valley, NVUSGS
4.56 kmCENTRAL CALIFORNIAEMSC

Témoignages pour ce séisme (50)

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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Dairyville ca (284.1 km NW of epicenter) [Map] / not felt : Water in cats bowl started shaking | 2 users found this interesting.  
Modesto, Ca (267.7 km S of epicenter) [Map] / Light shaking (MMI IV) / simple rolling (tilting sideways along one direction) / 5-10 s : Actually my cell phone sho | One user found this interesting.  
Georgetown, CA / Light shaking (MMI IV) / complex rolling (tilting in multiple directions) / 5-10 s : I was in a parking lot next to my car. Saw car jiggle around an felt ground rumble beneath me. Had to double check my parking break was on for fear car would roll away! | One user found this interesting.  
Gardnerville Nevada / Light shaking (MMI IV) / simple rolling (tilting sideways along one direction) / 2-5 s
56.9 km NW of epicenter [Map] / Weak shaking (MMI III) / complex motion difficult to describe / 10-15 s : Laying in bed and it felt like someone was under my bed and the glass on the lamp rattled  
Reno 89509. Just went to bed falling asleep and th / Moderate shaking (MMI V) / simple rolling (tilting sideways along one direction) / 5-10 s : Not a jolt more of a rolling undulating feeling.  
SILVER PEAK NV (184.5 km ESE of epicenter) [Map] / not felt (reported through our app)
95667 / Weak shaking (MMI III) / single lateral shake / very short
Pittsburg, ca / Very weak shaking (MMI II) / simple rolling (tilting sideways along one direction) / 15-20 s : A gentle rolling that seemed to go on for awhile but was probably 15-20 seconds.  
Roseville, CA (155.6 km W of epicenter) [Map] / Very weak shaking (MMI II) / vibration and rolling / 5-10 s
WINTON, CA / Weak shaking (MMI III) / very short : bed shook  
Las Vegas / not felt
Magalia CA / Light shaking (MMI IV) / single lateral shake / 20-30 s
South Lake Tahoe / not felt
48.4 km NNW of epicenter [Map] / Weak shaking (MMI III) (reported through our app)
Minden (63.7 km NNW of epicenter) [Map] / Weak shaking (MMI III) / both vertical and horizontal swinging / very short
Coleville, ca (3.1 km NW of epicenter) [Map] / Moderate shaking (MMI V) / 1-2 s (reported through our app)
92.3 km W of epicenter [Map] / Weak shaking (MMI III)
SOUTH LAKE TAHOE / Very weak shaking (MMI II) / 2-5 s
TRACY / Very weak shaking (MMI II) / 10-15 s
PIONEER,CA / Light shaking (MMI IV) / vibration and rolling / 10-15 s
Ripon / Very weak shaking (MMI II) / horizontal (sideways) swinging / 2-5 s
Vacaville, CA / Very weak shaking (MMI II) / single lateral shake / 1-2 s
Minden / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Shook my bed  
Home (96.9 km W of epicenter) [Map] / Weak shaking (MMI III) / complex motion difficult to describe / 2-5 s
Smiths (24.7 km NNE of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Murphys, ca / Weak shaking (MMI III)
At home in Tracy, CA / Light shaking (MMI IV) / horizontal (sideways) swinging / 1-2 s : Shook my bed back and forth for a couple seconds. Felt a little queasy.  
Tracy / Very weak shaking (MMI II) / horizontal (sideways) swinging / 1-2 s : Small shake  
Ione / Weak shaking (MMI III) / rattling, vibrating / 5-10 s : Little shake  
Truckee / Very weak shaking (MMI II) / horizontal (sideways) swinging / 1-2 s : Waves  
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