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Séisme mineur mag. 1.0 - 13 Km WNW of Amboy, Washington, USA, vendredi, le 09 avril 2021 04:08

Séisme mineur magnitude 1.0 à 16 km de profondeur

9 Apr 16:20 UTC: Premier à signaler: USGS après 12 heures.

Détails du séisme

Date et l'heure	9 Apr 2021 04:08:52 UTC
Heure locale à l'épicentre
Statut	Confirmé
Magnitude	1
Profondeur	16.4 km
Épicentre latitude / longitude	45.97367°N / 122.59017°W (Washington, États-Unis)
Antipode sismique	45.974°S / 57.41°E
Intensité d'agitation	Pas ressenti
Senti
Source de données principale	USGS (United States Geological Survey)
Volcan le plus près	Mount St. Helens (40 km / 25 mi)
Lieux à proximité	13 km ONO de Amboy (pop: 1,610) \| Carte \| Séismes à proximité 22 km NNO de Battle Ground (Clark County) (pop: 19,400) \| Carte \| Séismes à proximité 30 km N de Salmon Creek (pop: 19,700) \| Carte \| Séismes à proximité 32 km N de Five Corners (pop: 18,200) \| Carte \| Séismes à proximité 33 km SE de Longview (Cowlitz County) (pop: 36,800) \| Carte \| Séismes à proximité 34 km N de Hazel Dell (pop: 19,400) \| Carte \| Séismes à proximité 34 km N de Orchards (pop: 19,600) \| Carte \| Séismes à proximité 38 km N de Vancouver (pop: 172,900) \| Carte \| Séismes à proximité 45 km NNO de La Camas (pop: 21,800) \| Carte \| Séismes à proximité 51 km N de Portland (Oregon) (pop: 632,300) \| Carte \| Séismes à proximité
Météo à l'épicentre au moment du séisme
Énergie sismique estimée libérée	2 x 10⁶ joules (0.554 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
1.0	16 km	13 Km WNW of Amboy, Washington, USA	USGS

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

Seismograms

Seismic station: Southwest Flank 2, Mount St. Helens (SWF2/CC network) | Distance from quake: 37 km / 23 mi | Show on map | Station Info

Seismic station Southwest Flank 2, Mount St. Helens: 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 Southwest Flank 2, Mount St. Helens: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Southwest Flank 2, Mount St. Helens: 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: Upper South Fork Repeater (USFR/CC network) | Distance from quake: 38 km / 24 mi | Show on map | Station Info

Seismic station Upper South Fork Repeater: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Upper South Fork Repeater: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Upper South Fork Repeater: 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: September lobe, Mt. St. Helens (Dome sta) (SEP/CC network) | Distance from quake: 40 km / 25 mi | Show on map | Station Info

Seismic station September lobe, Mt. St. Helens (Dome sta): vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station September lobe, Mt. St. Helens (Dome sta): horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station September lobe, Mt. St. Helens (Dome sta): 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: Hoala (HOA/CC network) | Distance from quake: 43 km / 27 mi | Show on map | Station Info

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

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

Seismic station Hoala: 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: Hiyu Mountain (HIYU/CC network) | Distance from quake: 85 km / 53 mi | Show on map | Station Info

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

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

Seismic station Hiyu Mountain: 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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