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Séisme mineur mag. 1.5 - Southern Alaska, mercredi, 28 sept. 2022 15:30 (GMT -8) -

Séisme mineur magnitude 1.5 à 14 km de profondeur

28 Sep 23:32 UTC: Premier à signaler: USGS après 2 minutes.

Détails du séisme

Date et l'heure	28 Sep 2022 23:30:31 UTC -
Heure locale à l'épicentre	mercredi, 28 sept. 2022 15:30 (GMT -8)
Statut	Confirmé
Magnitude	1.5
Profondeur	14.1 km
Épicentre latitude / longitude	60.2927°N / 153.4566°W (Alaska, États-Unis)
Antipode sismique	60.293°S / 26.543°E
Intensité d'agitation	Pas ressenti
Senti
Source de données principale	USGS (United States Geological Survey)
Volcan le plus près	Iliamna (35 km / 22 mi)
Lieux à proximité	48 km ENE de Port Alsworth (pop: 159) \| Carte \| Séismes à proximité 67 km NNE de Pedro Bay (pop: 42) \| Carte \| Séismes à proximité 85 km ENE de Nondalton (pop: 157) \| Carte \| Séismes à proximité 102 km NE de Newhalen (pop: 182) \| Carte \| Séismes à proximité 103 km ONO de Ninilchik (pop: 883) \| Carte \| Séismes à proximité 103 km ONO de Happy Valley (pop: 593) \| Carte \| Séismes à proximité 107 km ONO de Anchor Point (pop: 1,930) \| Carte \| Séismes à proximité 136 km NO de Seldovia (pop: 277) \| Carte \| Séismes à proximité
Météo à l'épicentre au moment du séisme	Snow 1.4°C (35 F), humidity: 100%, wind: 4 m/s (8 kts) from E
Énergie sismique estimée libérée	1.1 x 10⁷ joules (3.12 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
1.5	14 km	Southern Alaska	USGS
1.5	10 km	Southern Alaska	IRIS
1.5	14 km	Southern Alaska	RaspberryShake

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

Seismograms

Seismic station: Iliamna Northeast, Iliamna, Alaska (ILNE/AV network) | Distance from quake: 34 km / 21 mi | Show on map | Station Info

Seismic station Iliamna Northeast, Iliamna, 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: 0.5-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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

Seismic station: Iliamna Volcano, Alaska (ILLG/AV network) | Distance from quake: 37 km / 23 mi | Show on map | Station Info

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

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

Seismic station Iliamna Volcano, 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: North Crescent, Redoubt Volcano, Alaska (NCT/AV network) | Distance from quake: 42 km / 26 mi | Show on map | Station Info

Seismic station North Crescent, Redoubt Volcano, Alaska: vertical movement plot around time of quake (source: IRIS/BUD)

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

Seismic station North Crescent, Redoubt Volcano, 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: Drift River Broadband, Redoubt Volcano, Alaska (RDDF/AV network) | Distance from quake: 54 km / 33 mi | Show on map | Station Info

Seismic station Drift River Broadband, Redoubt Volcano, Alaska: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Drift River Broadband, Redoubt Volcano, Alaska: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Drift River Broadband, Redoubt Volcano, 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: Bonanza Creek NPS repeater, AK, USA (N19K/AK network) | Distance from quake: 81 km / 50 mi | Show on map | Station Info

Seismic station Bonanza Creek NPS repeater, AK, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Bonanza Creek NPS repeater, AK, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Bonanza Creek NPS repeater, 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 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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