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Séisme modéré mag. 4.8 - 35 km au sud-ouest de Te Anau, Southland District, Nouvelle-Zélande, jeudi, 4 août 2022 21:16 (GMT +12) -

Séisme modéré mag. 4.8 - 35 km au sud-ouest de Te Anau, Southland District, Nouvelle-Zélande, jeudi,  4 août 2022 21:16 (GMT +12) Séisme modéré mag. 4.8 - 35 km au sud-ouest de Te Anau, Southland District, Nouvelle-Zélande, jeudi,  4 août 2022 21:16 (GMT +12)

Séisme modéré magnitude 4.8 à 5 km de profondeur

4 Aug 09:18 UTC: Premier à signaler: GEONET (NZ) après 1 minute.
4 Aug 09:19: Magnitude recalculée de 5.1 à 4.9. Profondeur recalculée de 12.0 à 5.0 km (de 7.5 à 3.1 mi).
4 Aug 09:22: Magnitude recalculée de 4.9 à 4.8. Emplacement de l'épicentre corrigé de 0.5 km (0.3 mi) au NNW.
Update Thu, 4 Aug 2022, 09:30

Moderate magnitude 4.8 earthquake 35 km southwest of Te Anau, New Zealand

4.8 quake 4 Aug 9:16 pm (GMT +12)
4.8 quake 4 Aug 9:16 pm (GMT +12)
An earthquake of magnitude 4.8 occurred in the evening on Thursday, August 4th, 2022, at 9:16 pm local time near Te Anau, Southland District, Southland, New Zealand, as reported by New Zealand's Earthquake Commission and Geological Survey (GeoNet).
According to preliminary data, the quake was located at a very shallow depth of 5 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.
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 Manapouri (pop. 230) located 23 km from the epicenter, the quake should have been felt as light shaking.
Weak shaking might have been felt in Te Anau (pop. 2,900) located 35 km from the epicenter, and Tuatapere (pop. 700) 69 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Winton (pop. 2,200) located 102 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.

Téléchargez l'application Volcans et Séismes et recevez l'une des alertes sismiques les plus rapides en ligne : Android | iOS

Détails du séisme

Date et l'heure4 Aug 2022 09:16:55 UTC -
Heure locale à l'épicentrejeudi, 4 août 2022 21:16 (GMT +12)
StatutConfirmé
Magnitude4.8
Profondeur5.0 km
Épicentre latitude / longitude45.56665°S / 167.31583°E (Southland District, Southland, Nouvelle-Zélande)
Antipode sismique45.567°N / 12.684°W
Intensité d'agitationSecousses faibles
Senti28 rapports
Source de données principaleGEONET (NZ) (Earthquake Commission and Geological Survey, New Zealand)
Lieux à proximité23 km O de Manapouri (pop: 228) | Carte | Séismes à proximité
35 km OSO de Te Anau (pop: 2,930) | Carte | Séismes à proximité
121 km OSO de Queenstown (Otago) (pop: 10,400) | Carte | Séismes à proximité
122 km NO de Invercargill (pop: 47,300) | Carte | Séismes à proximité
140 km ONO de Gore (pop: 13,100) | Carte | Séismes à proximité
250 km O de Dunedin (Otago) (pop: 114,300) | Carte | Séismes à proximité
767 km SO de Wellington (pop: 381,900) | Carte | Séismes à proximité
Météo à l'épicentre au moment du séismeLight Rain 7.4°C (45 F), humidity: 96%, wind: 3 m/s (6 kts) from NW
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.
Mag.ProfondeurLieuSource
4.85 kmNew ZealandGEONET (NZ)

Seismograms

Seismic station: South Karori, New Zealand (SNZO/IU network) | Distance from quake: 761 km / 473 mi | Show on map | Station Info
Seismic station South Karori, New Zealand: 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: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
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Témoignages pour ce séisme (30)

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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Nightcaps Southland (71.4 km SE of epicenter) [Map] / Weak shaking (MMI III) : Sitting, the house jolted and chair shook | One user found this interesting.  
Otatara, Invercargill / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s : I thought the cat was shaking the bed by scratching her ear but looked at her and she was lying still. Was fast wobbles for a short amount of time, 5 seconds.  
Invercargill new zealand (121.7 km SE of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / 2-5 s
Millers Flat (149.5 km E of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 1-2 s : Light shake with kind of whoosh  
Queenstown (120.9 km ENE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Weak to light shaking.  
Willowbank, Gore (142.6 km ESE of epicenter) [Map] / Weak shaking (MMI III) / single vertical bump / 1-2 s : Slight shaking then a small bump  
Queenstown (123.6 km ENE of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s
queenstown, new zealand (110.1 km NE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 5-10 s
Roxburgh (127.8 km E of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s
te anau (36.5 km ENE of epicenter) [Map] / Very weak shaking (MMI II) : shaked the bed  
Queenstown / Weak shaking (MMI III) / rattling, vibrating / 5-10 s
Gore / Weak shaking (MMI III) / horizontal (sideways) swinging / 10-15 s : Bed shaking  
Nightcaps, Otautau, Invercargill / Weak shaking (MMI III) / rattling, vibrating / very short : The room vibrating and shaking a little bit.  
Riverton / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Kawerau / Very weak shaking (MMI II) / single lateral shake / 2-5 s : Light shake  
Queenstown / Very weak shaking (MMI II) / vibration and rolling / 2-5 s : The lounge I was sitting on was shaking  
In bed / Weak shaking (MMI III) / single vertical bump / very short : Bed went up slightly at one end and dropped  
Queenstown / Light shaking (MMI IV) / single lateral shake / 2-5 s : The bed was shaking. I sat upright and checked that others felt it too. My first earthquake  
Invercargill / Very weak shaking (MMI II) / single vertical bump / 2-5 s
Pukerau / not felt
Gore / Very weak shaking (MMI II)
Mataura / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s
Te anau / Light shaking (MMI IV) / single vertical bump / very short : Wee shake and house creaking  
Queenstown / Weak shaking (MMI III) / rattling, vibrating / 5-10 s
Waipahi / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Invercargill / not felt : Slow swaying to start then shirt jolt and more rumbling as it eased iff (reported through our app)  
Riverton/Aparima / Weak shaking (MMI III) / 2-5 s
Queenstown / Weak shaking (MMI III) / horizontal (sideways) swinging / 1-2 s
Queenstown / Very weak shaking (MMI II) / single lateral shake / very short
Te Anau / Weak shaking (MMI III) / rattling, vibrating / 2-5 s
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Earlier earthquakes in the same area

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