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Séisme mineur mag. 1.2 - 7km WNW of Cobb, CA, mercredi, 28 sept. 2022 22:26 (GMT -7) -

Séisme mineur magnitude 1.2 à 1.9 km de profondeur

29 Sep 05:29 UTC: Premier à signaler: USGS après 2 minutes.
29 Sep 15:30: Magnitude recalculée de 1.4 à 1.2.

Détails du séisme

Date et l'heure	29 Sep 2022 05:26:34 UTC -
Heure locale à l'épicentre	mercredi, 28 sept. 2022 22:26 (GMT -7)
Statut	Confirmé
Magnitude	1.2
Profondeur	1.9 km
Épicentre latitude / longitude	38.8365°N / 122.80667°W (Californie, États-Unis)
Antipode sismique	38.837°S / 57.193°E
Intensité d'agitation	Secousses très faibles
Senti	0 rapports
Source de données principale	USGS (United States Geological Survey)
Volcan le plus près	Clear Lake (15 km / 9 mi)
Lieux à proximité	7 km ONO de Cobb (pop: 1,780) \| Carte \| Séismes à proximité 16 km S de Kelseyville (pop: 3,350) \| Carte \| Séismes à proximité 19 km E de Cloverdale (Sonoma County) (pop: 8,810) \| Carte \| Séismes à proximité 21 km SO de Clearlake (Lake County) (pop: 15,200) \| Carte \| Séismes à proximité 32 km N de Windsor (Sonoma County) (pop: 27,500) \| Carte \| Séismes à proximité 45 km N de Santa Rosa (pop: 175,000) \| Carte \| Séismes à proximité 75 km NO de Napa (pop: 80,400) \| Carte \| Séismes à proximité 93 km NO de Fairfield (pop: 113,000) \| Carte \| Séismes à proximité
Météo à l'épicentre au moment du séisme	Broken Clouds 12.3°C (54 F), humidity: 96%, wind: 2 m/s (5 kts) from NW
Énergie sismique estimée libérée	4 x 10⁶ joules (1.11 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
1.2	1.9 km	7km WNW of Cobb, CA	USGS
1.2	1.9 km	Northern California	RaspberryShake
1.4	10 km	Northern California	IRIS

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

Seismograms

Seismic station: Marconi Conference Center, Marshall, CA, USA (MCCM/BK network) | Distance from quake: 77 km / 48 mi | Show on map | Station Info

Seismic station Marconi Conference Center, Marshall, CA, 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 Marconi Conference Center, Marshall, CA, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Marconi Conference Center, Marshall, CA, 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: Columbia College, Columbia, CA, USA (CMB/BK network) | Distance from quake: 229 km / 142 mi | Show on map | Station Info

Seismic station Columbia College, Columbia, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)

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

Seismic station Columbia College, Columbia, CA, 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: San Andreas Geophysical Obs., Hollister, CA, USA (SAO/BK network) | Distance from quake: 260 km / 161 mi | Show on map | Station Info

Seismic station San Andreas Geophysical Obs., Hollister, CA, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station San Andreas Geophysical Obs., Hollister, CA, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station San Andreas Geophysical Obs., Hollister, CA, 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: Mammoth (MLAC/CI network) | Distance from quake: 372 km / 231 mi | Show on map | Station Info

Seismic station Mammoth: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Mammoth: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Mammoth: 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: Valley Oaks Golf Course (VOG/CI network) | Distance from quake: 411 km / 256 mi | Show on map | Station Info

Seismic station Valley Oaks Golf Course: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Valley Oaks Golf Course: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Valley Oaks Golf Course: 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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