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Statut de l'événement: unconfirmed [?]

Séisme ou événement semblable à un séisme non confirmé: 10.3 km à l'ouest de Orkney, Afrique du Sud, dimanche, 31 juil. 2022 05:09 (GMT +2) -

Séisme ou événement semblable à un séisme non confirmé: 10.3 km à l\'ouest de Orkney, Afrique du Sud, dimanche, 31 juil. 2022 05:09 (GMT +2) Séisme ou événement semblable à un séisme non confirmé: 10.3 km à l\'ouest de Orkney, Afrique du Sud, dimanche, 31 juil. 2022 05:09 (GMT +2)
31 Jul 03:13 UTC: Premier à signaler: VolcanoDiscovery après 4 minutes.

Détails du séisme

Date et l'heure31 Jul 2022 03:09:04 UTC -
Heure locale à l'épicentredimanche, 31 juil. 2022 05:09 (GMT +2)
Statutunconfirmed
Magnitudeunknown (3.8?)
Profondeur10.0 km
Épicentre latitude / longitude26.9574°S / 26.57238°E (Dr Kenneth Kaunda District Municipality, North West, Afrique du Sud)
Antipode sismique26.957°N / 153.428°W
Intensité d'agitationSecousses légères
Senti30 rapports
Source de données principaleVolcanoDiscovery (Rapports de tremblement soumis par utilisateurs)
Lieux à proximité10 km ONO de Orkney (North-West) (pop: 145,800) | Carte | Séismes à proximité
15 km SO de Klerksdorp (North-West) (pop: 178,900) | Carte | Séismes à proximité
23 km OSO de Stilfontein (North-West) (pop: 93,100) | Carte | Séismes à proximité
48 km N de Bothaville (Orange Free State) (pop: 71,900) | Carte | Séismes à proximité
149 km OSO de Soweto (Gauteng) (pop: 1,695,000) | Carte | Séismes à proximité
153 km SE de Mahikeng (North-West) (pop: 14,000) | Carte | Séismes à proximité
169 km OSO de Johannesburg (Gauteng) (pop: 2,026,500) | Carte | Séismes à proximité
210 km SO de Pretoria (Gauteng) (pop: 1,619,400) | Carte | Séismes à proximité
Météo à l'épicentre au moment du séismeFew Clouds 8.1°C (47 F), humidity: 45%, wind: 2 m/s (4 kts) from SSW
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Seismograms

Seismic station: Boshof, South Africa (BOSA/GT network) | Distance from quake: 225 km / 140 mi | Show on map | Station Info
Seismic station Boshof, South Africa: 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 (31)

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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Potchefstroom, Dr Kenneth Kaunda District Municipality (57.2 km ENE of epicenter) [Map] / Weak shaking (MMI III) : It came rumbling and I heard it move on. Bed shaking. | 3 users found this interesting.  
Klerksdorp Flamwood (15.9 km NE of epicenter) [Map] / Weak shaking (MMI III) / complex rolling (tilting in multiple directions) / 2-5 s : Flamwood,Klerksdorp. The bed moved and headboard | 2 users found this interesting.  
Orkney / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : Windows ratling | 2 users found this interesting.  
near Vredefort, Fezile Dabi District Municipality, Orange Free State (67.2 km ESE of epicenter) [Map] / Light shaking (MMI IV)
Potchefstroom, Dr Kenneth Kaunda District Municipality (57.5 km ENE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 15-20 s : woke up from sleep  
Klerksdorp (19.1 km NNE of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 15-20 s : The doors and cupboards were shaking  
Potchefstroom (60.8 km ENE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : Rattling at ~5:10 in Potchefstroom  
Klerksdorp (13 km NE of epicenter) [Map] / Light shaking (MMI IV)
Potchefstroom (59.3 km ENE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 10-15 s
Stilfontein North West Province (125 km WSW of epicenter) [Map] / Light shaking (MMI IV) / complex motion difficult to describe / 10-15 s : Woke up due to rolling and shaking  
Klerksdorp, Dr Kenneth Kaunda District Municipality, North-West (19.2 km NNE of epicenter) [Map] / Weak shaking (MMI III) : Weak shaking  
Klerksdorp flamwood South africa (17.5 km NE of epicenter) [Map] / Strong shaking (MMI VI) : Was very bad  
Klerksdorp (15.3 km NE of epicenter) [Map] / Weak shaking (MMI III) / simple rolling (tilting sideways along one direction) / 1-2 s : Rolling feeling. Roof made noise, rattleing sound of pictures on wall  
Klerksdorp, Dr Kenneth Kaunda District Municipality, North-West (11.9 km NE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Heard sudden rumbling and then felt light shakine  
Klerksdorp / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s
Stilfontein east / Weak shaking (MMI III) / rattling, vibrating / 5-10 s
Klerksdorp / Moderate shaking (MMI V) / 2-5 s
Potchefstroom / Moderate shaking (MMI V) / horizontal (sideways) swinging
Potchefstroom / Light shaking (MMI IV) / rattling, vibrating / 5-10 s
Stilfontein / not felt : I was asleep, it did not wake me up  
Johannesburg / Very weak shaking (MMI II) / rattling, vibrating / 10-15 s : Very weak  
Klerksdorp / Light shaking (MMI IV) / rattling, vibrating / 5-10 s
Klerksdorp / Light shaking (MMI IV) / rattling, vibrating / 10-15 s
Klerksdorp / Weak shaking (MMI III) / rattling, vibrating / 5-10 s : Bed shake and rumbling noise  
Klerksdorp South Africa / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Rattling woke me up! (reported through our app)  
Orkney / Weak shaking (MMI III)
stilfontein / Light shaking (MMI IV) / rattling, vibrating
Klerksdorp / Light shaking (MMI IV) / 2-5 s
Klerksdorp / Moderate shaking (MMI V) / rattling, vibrating / 5-10 s
Klerksdorp / Light shaking (MMI IV) / rattling, vibrating / 10-15 s
Orkney / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
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Earlier earthquakes in the same area

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