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Séisme mineur mag. 1.1 - 14km NNW of Chester, CA, samedi, le 03 juillet 2021 18:48

Séisme mineur magnitude 1.1 à 4.8 km de profondeur

3 Jul 19:30 UTC: Premier à signaler: USGS après 42 minutes.

Détails du séisme

Date et l'heure	3 Jul 2021 18:48:04 UTC
Heure locale à l'épicentre
Statut	Confirmé
Magnitude	1.1
Profondeur	4.8 km
Épicentre latitude / longitude	40.42767°N / 121.27517°W (Californie, États-Unis)
Antipode	40.428°S / 58.725°E
Intensité d'agitation	Pas ressenti
Senti
Source de données principale	USGS (United States Geological Survey)
Volcan le plus près	Lassen (20 km / 12 mi)
Lieux à proximité	14 km NNO de Chester (pop: 2,140) \| Carte \| Séismes à proximité 27 km ONO de Westwood (pop: 1,650) \| Carte \| Séismes à proximité 42 km NO de Greenville (pop: 1,130) \| Carte \| Séismes à proximité 52 km E de Shingletown (pop: 2,280) \| Carte \| Séismes à proximité 53 km O de Susanville (Lassen County) (pop: 15,200) \| Carte \| Séismes à proximité 60 km SSE de Burney (pop: 3,150) \| Carte \| Séismes à proximité 64 km NNO de East Quincy (pop: 2,490) \| Carte \| Séismes à proximité 65 km ONO de Janesville (pop: 1,410) \| Carte \| Séismes à proximité 73 km NNE de Magalia (Butte County) (pop: 11,300) \| Carte \| Séismes à proximité 80 km NNE de Paradise (Butte County) (pop: 26,500) \| Carte \| Séismes à proximité
Météo à l'épicentre au moment du séisme
Énergie sismique estimée libérée	2.8 x 10⁶ joules (0.783 kWh) \| 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
1.1	4.8 km	14km NNW of Chester, CA	USGS

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Seismograms

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Seismic station Crater Lake Bunk House: 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 Crater Lake Bunk House: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Crater Lake Bunk House: 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

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Seismic station Crater Lake, Wizard Island, OR: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Crater Lake, Wizard Island, OR: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Crater Lake, Wizard Island, OR: 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: Crater Lake, Cleetwood Cove, OR, USA (CLCV/CC network) | Distance from quake: 291 km / 181 mi | Show on map | Station Info

Seismic station Crater Lake, Cleetwood Cove, OR, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Crater Lake, Cleetwood Cove, OR, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Crater Lake, Cleetwood Cove, OR, 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: Wild Horse Valley, Oregon, USA (WVOR/US network) | Distance from quake: 313 km / 195 mi | Show on map | Station Info

Seismic station Wild Horse Valley, Oregon, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Wild Horse Valley, Oregon, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Wild Horse Valley, Oregon, 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: Surveyor's Cave, OR, USA (SVIC/CC network) | Distance from quake: 358 km / 222 mi | Show on map | Station Info

Seismic station Surveyor's Cave, OR, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Surveyor's Cave, OR, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Surveyor's Cave, OR, 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

Les séismes de cette ampleur ne peuvent normalement pas être ressentis par les humains, mais ils sont enregistrés par les sismomètres modernes.

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