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Séisme modéré mag. 4.8 - 65 km au sud de Wakkanai, Hokkaido, Japon, jeudi, 11 août 2022 00:35 (GMT +9) -

Séisme modéré mag. 4.8 - 65 km au sud de Wakkanai, Hokkaido, Japon, jeudi, 11 août 2022 00:35 (GMT +9) Séisme modéré mag. 4.8 - 65 km au sud de Wakkanai, Hokkaido, Japon, jeudi, 11 août 2022 00:35 (GMT +9)

Séisme modéré magnitude 4.8 à 10 km de profondeur

10 Aug 15:43 UTC: Premier à signaler: NIED après 8 minutes.
10 Aug 21:56: Maintenant en utilisant une nouvelle source de données: USGS
Update Wed, 10 Aug 2022, 15:48

Moderate magnitude 4.9 earthquake 72 km southeast of Wakkanai, Japan

4.9 quake 11 Aug 12:35 am (GMT +9)
4.9 quake 11 Aug 12:35 am (GMT +9)
Japan's National Research Institute for Earth Science and Disaster Resilience (NIED) reported a magnitude 4.9 quake in Japan near Wakkanai, Wakkanai Shi, Hokkaido, only 13 minutes ago. The earthquake hit after midnight on Thursday, August 11th, 2022, at 12:35 am local time at a very shallow depth of 5.2 km. 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 citizen-seismograph network of RaspberryShake which listed the quake at magnitude 4.6. Other agencies reporting the same quake include the European-Mediterranean Seismological Centre (EMSC) at magnitude 4.6, and the German Research Centre for Geosciences (GFZ) at magnitude 4.6.
Based on the preliminary seismic data, the quake should have been widely felt by almost everyone in the area of the epicenter. It might have caused light to moderate damage.
Moderate shaking probably occurred in Nakagawa (pop. 1,600) located 4 km from the epicenter.
In Horonobe (pop. 2,400) located 29 km from the epicenter, the quake should have been felt as light shaking.
Weak shaking might have been felt in Toyotomi (pop. 4,100) located 40 km from the epicenter, Nayoro (pop. 26,500) 61 km away, Makubetsu (pop. 25,900) 64 km away, Wakkanai (pop. 41,600) 72 km away, and Rumoi (pop. 26,500) 108 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Asahikawa (pop. 356,600) located 121 km from the epicenter.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

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Détails du séisme

Date et l'heure10 Aug 2022 15:35:18 UTC -
Heure locale à l'épicentrejeudi, 11 août 2022 00:35 (GMT +9)
Profondeur10.0 km
Épicentre latitude / longitude44.8689°N / 141.9724°E (Teshio Gun, Hokkaido, Japon)
Antipode sismique44.869°S / 38.028°W
Intensité d'agitationSecousses modérées près de l'épicentre
Senti0 rapports
Source de données principaleUSGS (United States Geological Survey)
Volcan le plus prèsRishiri (67 km / 42 mi)
Lieux à proximité10 km NO de Nakagawa (pop: 1,590) | Carte | Séismes à proximité
19 km SSE de Horonobe (pop: 2,420) | Carte | Séismes à proximité
30 km SSE de Toyotomi (pop: 4,050) | Carte | Séismes à proximité
57 km SSE de Makubetsu (Wakkanai) (pop: 25,900) | Carte | Séismes à proximité
65 km SSE de Wakkanai (pop: 41,600) | Carte | Séismes à proximité
69 km NO de Nayoro (pop: 26,500) | Carte | Séismes à proximité
126 km NNO de Asahikawa (pop: 356,600) | Carte | Séismes à proximité
207 km NNE de Sapporo (pop: 1,883,000) | Carte | Séismes à proximité
Énergie sismique estimée libérée1 x 1012 joules (278 MWh, équivalent à 239 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.
4.810 km57 Km SSE of Makubetsu, JapanUSGS
4.844 kmHokkaido, Japan RegionGFZ
4.810 kmHokkaido, Japan RegionRaspberryShake
4.95.2 kmJapan: SOYA REGIONNIED


Seismic station: Yuzhno Sakhalinsk, Russia (YSS/IU network) | Distance from quake: 240 km / 149 mi | Show on map | Station Info
Seismic station Yuzhno Sakhalinsk, Russia: 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
Montrer plus

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).
Sapporo-shi / not felt

Earlier earthquakes in the same area

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