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Séisme faible mag. 4.2 - Alaska, États-Unis, dimanche, 2 oct. 2022 15:03 (GMT -8) -

Séisme faible magnitude 4.2 à 168 km de profondeur

2 Oct 23:06 UTC: Premier à signaler: USGS après 3 minutes.
3 Oct 04:02: Magnitude recalculée de 3.7 à 4.2. Profondeur recalculée de 178.1 à 168.2 km (de 111 à 105 mi). Emplacement de l'épicentre corrigé de 3.4 km (2.1 mi) au NO.

Détails du séisme

Date et l'heure	2 Oct 2022 23:03:08 UTC -
Heure locale à l'épicentre	dimanche, 2 oct. 2022 15:03 (GMT -8)
Statut	Confirmé
Magnitude	4.2
Profondeur	168.2 km
Épicentre latitude / longitude	59.4543°N / 154.4766°W (Arrondissement de Lake and Peninsula, Alaska, États-Unis)
Antipode sismique	59.454°S / 25.523°E
Intensité d'agitation	Secousses très faibles
Senti	0 rapports
Source de données principale	USGS (United States Geological Survey)
Volcan le plus près	Augustine (60 km / 37 mi)
Lieux à proximité	17 km E de Kokhanok (pop: 170) \| Carte \| Séismes à proximité 38 km SE de Newhalen (pop: 182) \| Carte \| Séismes à proximité 166 km O de Homer (pop: 5,520) \| Carte \| Séismes à proximité 207 km OSO de Kalifornsky (pop: 7,850) \| Carte \| Séismes à proximité 217 km OSO de Kenai (pop: 7,660) \| Carte \| Séismes à proximité 319 km SO de Alaska City (pop: 298,700) \| Carte \| Séismes à proximité 340 km SO de Eagle River (pop: 24,800) \| Carte \| Séismes à proximité 340 km SO de Eagle River (Anchorage) (pop: 24,800) \| Carte \| Séismes à proximité
Météo à l'épicentre au moment du séisme	Overcast Clouds 7.9°C (46 F), humidity: 86%, wind: 6 m/s (12 kts) from ESE
Énergie sismique estimée libérée	1.3 x 10¹¹ joules (35 MWh, équivalent à 30.1 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
4.2	168 km	Southern Alaska	USGS
4.6	172 km	SOUTHERN ALASKA	EMSC
4.2	168 km	Southern Alaska	RaspberryShake
3.7	10 km	Southern Alaska	IRIS
4.5	176 km	Southern Alaska	GFZ

Séismes les plus récents Top 20 dernières 24 heures Quakes in the US Alaska and Aleutian Islands

Seismograms

Seismic station: Augustine North, Augustine Island, Alaska (AUNO/AV network) | Distance from quake: 58 km / 36 mi | Show on map | Station Info

Seismic station Augustine North, Augustine Island, Alaska: 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: 0.2-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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Seismic station Augustine North, Augustine Island, Alaska: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Augustine North, Augustine Island, Alaska: 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: Iliamna Northeast, Iliamna, Alaska (ILNE/AV network) | Distance from quake: 104 km / 64 mi | Show on map | Station Info

Seismic station Iliamna Northeast, Iliamna, Alaska: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Iliamna Northeast, Iliamna, Alaska: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Iliamna Northeast, Iliamna, Alaska: 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: Bradley Lake, AK, USA (BRLK/AK network) | Distance from quake: 204 km / 126 mi | Show on map | Station Info

Seismic station Bradley Lake, AK, USA: vertical movement plot around time of quake (source: IRIS/BUD)

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

Seismic station Bradley Lake, AK, 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: Tigyukauivet Mountain, AK, USA (O14K/AK network) | Distance from quake: 385 km / 239 mi | Show on map | Station Info

Seismic station Tigyukauivet Mountain, AK, USA: vertical movement plot around time of quake (source: IRIS/BUD)

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

Seismic station Tigyukauivet Mountain, AK, 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: False Pass, AK, USA (FALS/AK network) | Distance from quake: 742 km / 461 mi | Show on map | Station Info

Seismic station False Pass, AK, 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: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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

Seismic station False Pass, AK, 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 rapports des utilisateurs estiment l'intensité perçue des secousses du sol en fonction de l' Échelle MMI (Modified Mercalli Intensity Scale).

There are no user reports for this quake.

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