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Séisme modéré mag. 4.0 - 16 km au sud de Kumamoto, Préfecture de Kumamoto, Japon, mardi, 8 juin 2021 16:59 (GMT +9)

Séisme modéré mag. 4.0 - 16 km au sud de Kumamoto, Préfecture de Kumamoto, Japon, mardi,  8 juin 2021 16:59 (GMT +9) Séisme modéré mag. 4.0 - 16 km au sud de Kumamoto, Préfecture de Kumamoto, Japon, mardi,  8 juin 2021 16:59 (GMT +9)

Séisme modéré magnitude 4.0 à 10 km de profondeur

8 Jun 08:06 UTC: Premier à signaler: NIED après 6 minutes.
Update Tue, 8 Jun 2021, 08:12

Moderate 4.0 quake hits near Kumamoto, Kumamoto Shi, Japan

4.0 quake 8 Jun 4:59 pm (GMT +9)
4.0 quake 8 Jun 4:59 pm (GMT +9)
An earthquake of magnitude 4.0 occurred in the afternoon on Tuesday 8 June 2021 at 4:59 pm local time near Kumamoto, Kumamoto Shi, Japan, as reported by Japan's National Research Institute for Earth Science and Disaster Resilience (NIED).
According to preliminary data, the quake was located at a shallow depth of 10 km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. 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.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 3.8.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Matsubase (pop. 26,200) located 2 km from the epicenter, the quake should have been felt as light shaking.
Weak shaking might have been felt in Uto (pop. 39,200) located 3 km from the epicenter, Kumamoto (pop. 680,400) 16 km away, Honmachi (pop. 104,300) 19 km away, Uekimachi-mōno (pop. 31,700) 27 km away, and Ōzu (pop. 29,800) 30 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Yamaga (pop. 32,300) located 40 km from the epicenter, and Omuta (pop. 132,000) 47 km away.

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Détails du séisme

Date et l'heure8 Jun 2021 07:59:58 UTC
Heure locale à l'épicentremardi, 8 juin 2021 16:59 (GMT +9)
StatutConfirmé
Magnitude4
Profondeur10.0 km
Épicentre latitude / longitude32.659°N / 130.684°E (Uki Shi, Préfecture de Kumamoto, Japon)
Antipode32.659°S / 49.316°W
Intensité d'agitationSecousses légères près de l'épicentre
Senti0 rapports
Source de données principaleNIED (National Research Institute for Earth Science and Disaster Resilience)
Volcan le plus prèsUnzen (38 km / 24 mi)
Lieux à proximité2 km ENE de Matsubase (Uki) (pop: 26,200) | Carte | Séismes à proximité
3 km SSE de Uto (pop: 39,200) | Carte | Séismes à proximité
16 km S de Kumamoto (pop: 680,400) | Carte | Séismes à proximité
19 km NNE de Honmachi (pop: 104,300) | Carte | Séismes à proximité
27 km S de Uekimachi-mōno (Kumamoto) (pop: 31,700) | Carte | Séismes à proximité
30 km SO de Ōzu (Kikuchi District) (pop: 29,800) | Carte | Séismes à proximité
40 km S de Yamaga (pop: 32,300) | Carte | Séismes à proximité
47 km SSE de Ōmuta (Fukuoka) (pop: 132,000) | Carte | Séismes à proximité
108 km SSE de Fukuoka (pop: 1,392,300) | Carte | Séismes à proximité
894 km OSO de Tokyo (pop: 8,336,600) | Carte | Séismes à proximité
Météo à l'épicentre au moment du séismeOvercast Clouds 31.5°C (89 F), humidity: 60%, wind: 2 m/s (3 kts) from WSW
Énergie sismique estimée libérée6.3 x 1010 joules (17.5 MWh, équivalent à 15.1 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.ProfondeurLieuSource
4.010 kmJapan: NW KUMAMOTO PREFNIED
3.810 kmKYUSHU, JAPANEMSC

Seismograms

Seismic station: Oita Nakatsue (JNU/JP network) | Distance from quake: 55 km / 34 mi | Show on map | Station Info
Seismic station Oita Nakatsue: 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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Témoignages pour ce séisme (1)

Les rapports des utilisateurs estiment l'intensité perçue des secousses du sol en fonction de l' Échelle MMI (Modified Mercalli Intensity Scale).
Traduire

Earlier earthquakes in the same area

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