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Séisme mineur mag. 2.8 - 6.8 km au nord-est de Sakado, Saitama, Japon, dimanche, 4 déc. 2022 21:26 (GMT +9) -

Séisme mineur magnitude 2.8 à 99 km de profondeur

4 Dec 12:33 UTC: Premier à signaler: NIED après 6 minutes.

Détails du séisme

Date et l'heure	4 Dec 2022 12:26:57 UTC -
Heure locale à l'épicentre	dimanche, 4 déc. 2022 21:26 (GMT +9)
Statut	Confirmé
Magnitude	2.8
Profondeur	99.2 km
Épicentre latitude / longitude	35.986°N / 139.455°E (Hiki-gun, Saitama, Japon)
Antipode sismique	35.986°S / 40.545°W
Intensité d'agitation	Pas ressenti
Senti
Source de données principale	NIED (National Research Institute for Earth Science and Disaster Resilience)
Volcan le plus près	Akagi (68 km / 42 mi)
Lieux à proximité	7 km ENE de Sakado (pop: 96,700) \| Carte \| Séismes à proximité 9 km NNO de Kawagoe (pop: 337,900) \| Carte \| Séismes à proximité 9 km O de Okegawa (pop: 75,100) \| Carte \| Séismes à proximité 11 km SSO de Kōnosu (pop: 88,500) \| Carte \| Séismes à proximité 14 km O de Ageo (pop: 219,400) \| Carte \| Séismes à proximité 15 km NNE de Sayama (pop: 160,800) \| Carte \| Séismes à proximité 20 km ONO de Saitama (pop: 1,193,400) \| Carte \| Séismes à proximité 39 km NNO de Tokyo (pop: 8,336,600) \| Carte \| Séismes à proximité
Météo à l'épicentre au moment du séisme	Overcast Clouds 10.8°C (51 F), humidity: 50%, wind: 3 m/s (5 kts) from NNW
Énergie sismique estimée libérée	1 x 10⁹ joules (278 kWh, équivalent à 0.239 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.

Mag.	Profondeur	Lieu	Source
2.8	99 km	Japan: EASTERN SAITAMA PREF	NIED

Séismes les plus récents Top 20 dernières 24 heures Séismes en: Japon

Seismograms

Seismic station: Ibaraki Yasato (JYT/JP network) | Distance from quake: 71 km / 44 mi | Show on map | Station Info

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

Seismic station Ibaraki Yasato: 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: Matsushiro, Japan (MAJO/IU network) | Distance from quake: 128 km / 80 mi | Show on map | Station Info

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

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

Seismic station Matsushiro, Japan: 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: Shizuoka Sagara (JSG/JP network) | Distance from quake: 186 km / 115 mi | Show on map | Station Info

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

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

Seismic station Shizuoka Sagara: 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: Miyagi Marumori (JMM/JP network) | Distance from quake: 241 km / 150 mi | Show on map | Station Info

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

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

Seismic station Miyagi Marumori: 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: Kyoto Wachi (JWT/JP network) | Distance from quake: 375 km / 233 mi | Show on map | Station Info

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

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

Seismic station Kyoto Wachi: 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

At magnitude 2.8, this quake might have been felt very close to the epicenter and under calm conditions.

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

There are no user reports for this quake.

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