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Séisme très faible mag. 2.8 - 9.8 km au nord de West Yellowstone, Comté de Gallatin County, Montana, États-Unis, samedi, 1 oct. 2022 14:39 (GMT -6) -

Séisme très faible magnitude 2.8 à 13 km de profondeur

1 Oct 20:43 UTC: Premier à signaler: USGS après 4 minutes.
1 Oct 20:57: Profondeur recalculée de 13.2 à 13.0 km (de 8.2 à 8.1 mi).

Détails du séisme

Date et l'heure	1 Oct 2022 20:39:18 UTC -
Heure locale à l'épicentre	samedi, 1 oct. 2022 14:39 (GMT -6)
Statut	Confirmé
Magnitude	2.8
Profondeur	13.0 km
Épicentre latitude / longitude	44.75°N / 111.11133°W (Comté de Gallatin, Montana, États-Unis)
Antipode sismique	44.75°S / 68.889°E
Intensité d'agitation	Pas ressenti
Senti	0 rapports
Source de données principale	USGS (United States Geological Survey)
Volcan le plus près	Yellowstone (49 km / 30 mi)
Lieux à proximité	7 km ESE de Hebgen Lake Estates (pop: 70) \| Carte \| Séismes à proximité 10 km N de West Yellowstone (pop: 1,340) \| Carte \| Séismes à proximité 42 km NNE de Island Park (Idaho) (pop: 272) \| Carte \| Séismes à proximité 45 km SO de Gardiner (pop: 875) \| Carte \| Séismes à proximité 63 km SSE de Big Sky (pop: 2,310) \| Carte \| Séismes à proximité 80 km NNE de Ashton (Idaho) (pop: 1,050) \| Carte \| Séismes à proximité 82 km SE de Ennis (pop: 884) \| Carte \| Séismes à proximité 98 km NNE de Saint Anthony (Idaho) (pop: 3,540) \| Carte \| Séismes à proximité
Météo à l'épicentre au moment du séisme	Overcast Clouds 12.2°C (54 F), humidity: 46%, wind: 3 m/s (6 kts) from NNW
Énergie sismique estimée libérée	1 x 10⁹ joules (278 kWh, équivalent à 0.239 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.	Profondeur	Lieu	Source
2.8	13 km	6 Km ESE of Hebgen Lake Estates, Montana	USGS
2.4	9 km	WESTERN MONTANA	EMSC
2.8	13 km	Hebgen Lake Region	RaspberryShake
2.8	10 km	Hebgen Lake Region	IRIS

Séismes les plus récents Top 20 dernières 24 heures Quakes in the US

Seismograms

Seismic station: Bozeman, Montana, USA (BOZ/US network) | Distance from quake: 103 km / 64 mi | Show on map | Station Info

Seismic station Bozeman, Montana, USA: 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: 0.5-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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Seismic station Bozeman, Montana, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Bozeman, Montana, USA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake, showing horizontal E-W and N-S ground movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Long Hollow, Wyoming USA (LOHW/IW network) | Distance from quake: 133 km / 83 mi | Show on map | Station Info

Seismic station Long Hollow, Wyoming USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Long Hollow, Wyoming USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Long Hollow, Wyoming USA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Auburn Hatchery, Idaho, USA (AHID/US network) | Distance from quake: 221 km / 137 mi | Show on map | Station Info

Seismic station Auburn Hatchery, Idaho, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Auburn Hatchery, Idaho, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Auburn Hatchery, Idaho, USA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Hailey, Idaho, USA (HLID/US network) | Distance from quake: 295 km / 183 mi | Show on map | Station Info

Seismic station Hailey, Idaho, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Hailey, Idaho, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Hailey, Idaho, USA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Near Browns Crk and Slater Flat Rd, Idaho, USA (MFID/IW network) | Distance from quake: 405 km / 252 mi | Show on map | Station Info

Seismic station Near Browns Crk and Slater Flat Rd, Idaho, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Near Browns Crk and Slater Flat Rd, Idaho, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Near Browns Crk and Slater Flat Rd, Idaho, USA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Témoignages pour ce séisme (1)

At magnitude 2.8, this quake might have been felt very close to the epicenter and under calm conditions.

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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West Yellowstone / not felt

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