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Séisme faible mag. 3.0 - 5.3 km au sud-est de Klerksdorp, Afrique du Sud, vendredi, 22 juil. 2022 20:26 (GMT +2) -

Séisme faible mag. 3.0 - 5.3 km au sud-est de Klerksdorp, Afrique du Sud, vendredi, 22 juil. 2022 20:26 (GMT +2) Séisme faible mag. 3.0 - 5.3 km au sud-est de Klerksdorp, Afrique du Sud, vendredi, 22 juil. 2022 20:26 (GMT +2)

Séisme faible magnitude 3.0 à 10 km de profondeur

22 Jul 18:28 UTC: Premier à signaler: VolcanoDiscovery après 2 minutes.
22 Jul 18:36: Maintenant en utilisant une nouvelle source de données: RaspberryShake

Détails du séisme

Date et l'heure22 Jul 2022 18:26:29 UTC -
Heure locale à l'épicentrevendredi, 22 juil. 2022 20:26 (GMT +2)
StatutConfirmé
Magnitude3
Profondeur10.0 km
Épicentre latitude / longitude26.88°S / 26.71°E (Dr Kenneth Kaunda District Municipality, North West, Afrique du Sud)
Antipode sismique26.88°N / 153.29°W
Intensité d'agitationSecousses légères
Senti23 rapports
Source de données principaleRaspberryShake (RaspberryShake)
Lieux à proximité5 km SE de Klerksdorp (North-West) (pop: 178,900) | Carte | Séismes à proximité
7 km SO de Stilfontein (North-West) (pop: 93,100) | Carte | Séismes à proximité
12 km NNE de Orkney (North-West) (pop: 145,800) | Carte | Séismes à proximité
43 km OSO de Potchefstroom (North-West) (pop: 123,700) | Carte | Séismes à proximité
133 km OSO de Soweto (Gauteng) (pop: 1,695,000) | Carte | Séismes à proximité
153 km OSO de Johannesburg (Gauteng) (pop: 2,026,500) | Carte | Séismes à proximité
155 km SE de Mahikeng (North-West) (pop: 14,000) | Carte | Séismes à proximité
194 km SO de Pretoria (Gauteng) (pop: 1,619,400) | Carte | Séismes à proximité
Météo à l'épicentre au moment du séismeOvercast Clouds 15.7°C (60 F), humidity: 43%, wind: 2 m/s (4 kts) from NW
Énergie sismique estimée libérée2 x 109 joules (554 kWh, équivalent à 0.477 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
3.010 kmNear Klerksdorp, North-West, South AfricaRaspberryShake
3.010 kmSOUTH AFRICAEMSC

Seismograms

Seismic station: Lobatse, Botswana (LBTB/GT network) | Distance from quake: 235 km / 146 mi | Show on map | Station Info
Seismic station Lobatse, Botswana: 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
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Témoignages pour ce séisme (23)

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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Klerksdorp, Dr Kenneth Kaunda District Municipality, North-West (6.5 km NW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : I felt shaking twice about 15 min between each shake. The last one was the heaviest. | 3 users found this interesting.  
Orkney (12.6 km SSW of epicenter) [Map] / Very weak shaking (MMI II) / simple rolling (tilting sideways along one direction) / 1-2 s : Slight rumbling running through house. Very quick and not that loud. Heard it coming before we felt it pass through. Second one in less than half an hr.  
Stilfontein, Dr Kenneth Kaunda District Municipality, North-West (8.8 km ENE of epicenter) [Map] / Strong shaking (MMI VI) / rattling, vibrating / 5-10 s : Running for loooong | One user found this interesting.  
STILFONTEIN / Light shaking (MMI IV) / rattling, vibrating / 1-2 s : Felt like trillings.Not as heavy as the one on 17/06/22. There were 2 afterwards shakes within minutes of each other. The 3 in total make me a bit nervious. The dogs were NO botherded by it - this time.  
Klerksdorp, Dr Kenneth Kaunda District Municipality, North-West (2.9 km NNW of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s
Stilfontein (5 km NE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Was in lounge watching TV  
Stilfontein (5.1 km NE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 5-10 s
Klerksdorp (5 km NE of epicenter) [Map] / Light shaking (MMI IV) : Was at the dinner table and lights flickerd  
Stilfontein, Dr Kenneth Kaunda District Municipality, North-West (4.5 km NE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 1-2 s : 4 big "tremors" after each other getting stronger  
Klerksdorp (6.9 km NNW of epicenter) [Map] / Very weak shaking (MMI II) / single vertical bump / very short : 3 small earthquakes in less than 10 min  
Stilfontein (6 km NE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 5-10 s : In my house  
Orkney (12 km SSW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 1-2 s
Klerksdorp (4.8 km NNW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 5-10 s
Stilfontein, Dr Kenneth Kaunda District Municipality, North-West (7.7 km ENE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s : All good, everyone safe.  
Klerksdorp South Africa / Light shaking (MMI IV) / single lateral shake / 2-5 s : It had a rolling effect! (reported through our app)  
Stilfontein / Light shaking (MMI IV) / 2-5 s (reported through our app)
Doringkruin / Weak shaking (MMI III) / both vertical and horizontal swinging
Doringkruin / Weak shaking (MMI III) / rattling, vibrating / 2-5 s
Klerksdorp / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Klerksdorp / Light shaking (MMI IV) / vibration and rolling
Stilfontein / Light shaking (MMI IV) / rattling, vibrating / 1-2 s : Lights flickerd  
Stilfontein / Weak shaking (MMI III) / both vertical and horizontal swinging / 2-5 s
Stilfontein / Light shaking (MMI IV) / rattling, vibrating / 10-15 s
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Earlier earthquakes in the same area

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