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Séisme faible mag. 3.6 - 49 km au sud de Baie de Hilo, Comté de Hawaii County, Hawaï, États-Unis, dimanche, 23 mai 2021 08:36 (GMT -10)

Séisme faible mag. 3.6 - 49 km au sud de Baie de Hilo, Comté de Hawaii County, Hawaï, États-Unis, dimanche, 23 mai 2021 08:36 (GMT -10) Séisme faible mag. 3.6 - 49 km au sud de Baie de Hilo, Comté de Hawaii County, Hawaï, États-Unis, dimanche, 23 mai 2021 08:36 (GMT -10)

Séisme faible magnitude 3.6 à 8.3 km de profondeur

23 May 18:39 UTC: Premier à signaler: VolcanoDiscovery après 3 minutes.
23 May 18:41: Maintenant en utilisant une nouvelle source de données: EMSC
... [show all] ...
23 May 19:02: Profondeur recalculée de 7.6 à 8.3 km (de 4.7 à 5.2 mi).
Update Sun, 23 May 2021, 18:48

Small magnitude 3.6 quake hits 30 miles southwest of Hilo, Hawaii, United States in the morning

3.6 quake 23 May 8:36 am (GMT -10)
3.6 quake 23 May 8:36 am (GMT -10)
An earthquake of magnitude 3.6 occurred only 11 minutes ago 30 miles southwest of Hilo, Hawaii, United States, the United States Geological Survey reported.
The quake hit at a very shallow depth of 4.7 miles beneath the epicenter near Hilo, Hawaii County, Hawaii, USA, in the morning on Sunday 23 May 2021 at 8:36 am local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 3.6 earthquake as well.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Volcano Village (pop. 2,600) located 10 miles from the epicenter.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Mountain View (pop. 3,900) located 19 miles from the epicenter, Hawaiian Acres (pop. 2,700) 19 miles away, Ainaloa (pop. 3,000) 21 miles away, Orchidlands Estates (pop. 2,800) 22 miles away, Hawaiian Paradise Park (pop. 11,400) 25 miles away, Hawaiian Beaches (pop. 4,300) 25 miles away, and Hilo (pop. 43,300) 30 miles away.

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Détails du séisme

Date et l'heure23 May 2021 18:36:57 UTC
Heure locale à l'épicentredimanche, 23 mai 2021 08:36 (GMT -10)
StatutConfirmé
Magnitude3.6
Profondeur8.3 km
Épicentre latitude / longitude19.3045°N / 155.21517°W (Comté de Hawaii, Hawaï, États-Unis)
Antipode19.305°S / 24.785°E
Intensité d'agitationSecousses faibles
Senti8 rapports
Source de données principaleUSGS (United States Geological Survey)
Volcan le plus prèsKilauea (14 km / 9 mi)
Lieux à proximité16 km S de Volcano Village (pop: 2,580) | Carte | Séismes à proximité
30 km ENE de Pāhala (pop: 1,360) | Carte | Séismes à proximité
30 km SSO de Mountainview (pop: 3,920) | Carte | Séismes à proximité
39 km SO de Nanawale Estates (pop: 1,430) | Carte | Séismes à proximité
41 km SO de Hawaiian Paradise Park (Hawaii County) (pop: 11,400) | Carte | Séismes à proximité
49 km SSO de Baie de Hilo (pop: 43,300) | Carte | Séismes à proximité
63 km ENE de Hawaiian Ocean View (pop: 4,440) | Carte | Séismes à proximité
90 km ESE de Kailua-Kona (Hawaii County) (pop: 12,000) | Carte | Séismes à proximité
93 km ESE de Kalaoa (Hawaii County) (pop: 9,640) | Carte | Séismes à proximité
354 km SE de Honolulu (pop: 371,700) | Carte | Séismes à proximité
Énergie sismique estimée libérée1.6 x 1010 joules (4.4 MWh, équivalent à 3.79 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.ProfondeurLieuSource
3.68.3 km15 Km S of Volcano, HawaiiUSGS
3.916 kmISLAND OF HAWAII, HAWAIIEMSC

Seismograms

Seismic station: Pohakuloa, Hawaii, USA (POHA/IU network) | Distance from quake: 60 km / 37 mi | Show on map | Station Info
Seismic station Pohakuloa, Hawaii, 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. Source: IRIS Buffer of Uniform Data (BUD) webtool
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Témoignages pour ce séisme (8)

Les rapports des utilisateurs estiment l'intensité perçue des secousses du sol en fonction de l' Échelle MMI (Modified Mercalli Intensity Scale).
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Fern Acres, Hawaii, Hawaii (18.8 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / 1-2 s
near Nanawale Estates, Hawaii, Hawaii (29.4 km ENE of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / very short
near Volcano Village, Hawaii, Hawaii (28.8 km N of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s
Volcano hawaii (14.5 km N of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s : Sitting on couch- felt house rocking back and forth  
Hilo / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s
Mountain View / Light shaking (MMI IV) / 2-5 s : Light shaking in the house rumbling.  
Kurtistown / Very weak shaking (MMI II) / 2-5 s : Little shiver of a quake  
Pepeekeo / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s : Standard Local quake Three good shakes Very noticeable  

Earlier earthquakes in the same area

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