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Séisme modéré mag. 5.4 - South Pacific Ocean, 144 km à l'est de Nukalofa, Nuku'alofa, Tongatapu, lundi, 28 nov. 2022 22:30 (GMT +13) -

Séisme modéré mag. 5.4 - South Pacific Ocean, 144 km à l\'est de Nukalofa, Nuku\'alofa, Tongatapu, lundi, 28 nov. 2022 22:30 (GMT +13) Séisme modéré mag. 5.4 - South Pacific Ocean, 144 km à l\'est de Nukalofa, Nuku\'alofa, Tongatapu, lundi, 28 nov. 2022 22:30 (GMT +13)

Séisme modéré magnitude 5.4 à 44 km de profondeur

28 Nov 09:40 UTC: Premier à signaler: GFZ après 10 minutes.
28 Nov 09:43: Magnitude recalculée de 5.4 à 5.5. Profondeur recalculée de 113.0 à 90.0 km (de 70 à 56 mi). Emplacement de l'épicentre corrigé de 16 km (9.7 mi) au WSW.
28 Nov 09:51: Maintenant en utilisant une nouvelle source de données: USGS
Update Mon, 28 Nov 2022, 09:48

Magnitude 5.5 earthquake strikes near Nukalofa, Nuku'alofa, Tongatapu, Tonga

5.5 quake 28 Nov 10:30 pm (GMT +13)
5.5 quake 28 Nov 10:30 pm (GMT +13)
Just 17 minutes ago, a 5.5-magnitude earthquake struck near Nukalofa, Nuku'alofa, Tongatapu, Tonga. The tremor was recorded late at night on Monday, November 28th, 2022, at 10:30 pm local time, at an intermediate depth of 90 km below the surface.
The event was filed by the German Research Centre for Geosciences (GFZ), the first seismological agency to report it.
A second report was later issued by the citizen-seismograph network of RaspberryShake, which listed it as a magnitude 5.5 earthquake as well. Other agencies reporting the same quake include France's Réseau National de Surveillance Sismique (RéNaSS) at magnitude 5.5, and the European-Mediterranean Seismological Centre (EMSC) at magnitude 5.4.
Generally quakes of this magnitude are recorded by more than one agency and the results can vary, with subsequent reports that come in after the first one often showing more accuracy.
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 'Ohonua (pop. 1,200) located 58 km from the epicenter, Kolonga (pop. 1,100) 73 km away, Lapaha (pop. 8,000) 77 km away, Nukalofa (pop. 22,400) 86 km away, Nuku'alofa (pop. 22,400) 86 km away, and Haveluloto (pop. 3,400) 87 km away.
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'heure28 Nov 2022 09:30:27 UTC -
Heure locale à l'épicentrelundi, 28 nov. 2022 22:30 (GMT +13)
StatutConfirmé
Magnitude5.4
Profondeur43.6 km
Épicentre latitude / longitude21.3843°S / 173.8365°W (South Pacific Ocean, Tonga)
Antipode sismique21.384°N / 6.164°E
Intensité d'agitationSecousses légères près de l'épicentre
Senti0 rapports
Source de données principaleUSGS (United States Geological Survey)
Volcan le plus prèsHunga Tonga-Hunga Ha'apai (184 km / 114 mi)
Lieux à proximité115 km E de ‘Ohonua (Ohonua) (pop: 1,240) | Carte | Séismes à proximité
131 km ESE de Kolonga (pop: 1,100) | Carte | Séismes à proximité
144 km E de Nukalofa (Nuku'alofa) (pop: 22,400) | Carte | Séismes à proximité
144 km E de Nuku‘alofa (pop: 22,400) | Carte | Séismes à proximité
183 km SSE de Bangai (Pangai) (pop: 1,740) | Carte | Séismes à proximité
304 km S de Neiafu (pop: 4,320) | Carte | Séismes à proximité
142 km E de Amsterdam Island (pop: 75,000) | Carte | Séismes à proximité
Météo à l'épicentre au moment du séismeOvercast Clouds 26.2°C (79 F), humidity: 81%, wind: 5 m/s (10 kts) from E
Énergie sismique estimée libérée7.9 x 1012 joules (2.21 GWh, équivalent à 1898 tonnes de TNT ou 0.1 bombes atomiques!) | 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
5.444 km115 Km E of ‘Ohonua, TongaUSGS
5.486 kmTONGAEMSC
5.710 kmTonga: Near North ShoreRENASS
5.444 kmTonga IslandsRaspberryShake
5.450 kmTonga IslandsGFZ
5.439 kmTonga IslandsGeoAu
5.410 kmTonga IslandsIRIS

Seismograms

Seismic station: Rarotonga, Cook Islands (RAR/IU network) | Distance from quake: 1457 km / 905 mi | Show on map | Station Info
Seismic station Rarotonga, Cook Islands: 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: 0.02-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
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Témoignages pour ce séisme

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.

Répliques

[Plus d'infos]

Répliques enregistrées, les plus récentes en premier (0 séisme)

Jusqu'à présent, aucune replique n'a étée enregistrée.

Earlier earthquakes in the same area

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