Weak mag. 2.7 earthquake - 2.4 km north of Stilfontein, South Africa, on Wednesday, Dec 22, 2021 at 10:04 pm (GMT +2) -
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Weak magnitude 2.7 earthquake at 10 km depth
22 Dec 20:14 UTC: First to report: CGS after 9 minutes.
22 Dec 20:21: Magnitude recalculated from 2.5 to 2.6.
22 Dec 21:21: Epicenter location corrected by 0.5 km (0.3 mi) towards ESE.
23 Dec 02:28: Magnitude recalculated from 2.6 to 2.7.
22 Dec 20:21: Magnitude recalculated from 2.5 to 2.6.
22 Dec 21:21: Epicenter location corrected by 0.5 km (0.3 mi) towards ESE.
23 Dec 02:28: Magnitude recalculated from 2.6 to 2.7.
Earthquake details
| Date & time | Dec 22, 2021 20:04:44 UTC - |
| Local time at epicenter | Wednesday, Dec 22, 2021 at 10:04 pm (GMT +2) |
| Status | Confirmed |
| Magnitude | 2.7 |
| Depth | 10.0 km |
| Epicenter latitude / longitude | 26.824°S / 26.775°E  (Dr Kenneth Kaunda District Municipality, North West, South Africa) |
| Antipode | 26.824°N / 153.225°W |
| Shaking intensity | Very weak shaking |
| Felt | 0 reports |
| Primary data source | CGS (Council for Geoscience, South African National Seismograph Network) |
| Nearby towns and cities | 2 km (2 mi) NNE of Stilfontein (North-West) (pop: 93,100) | Show on map | Quakes nearby 11 km (7 mi) ENE of Klerksdorp (North-West) (pop: 178,900) | Show on map | Quakes nearby 20 km (13 mi) NNE of Orkney (North-West) (pop: 145,800) | Show on map | Quakes nearby 34 km (21 mi) WSW of Potchefstroom (North-West) (pop: 123,700) | Show on map | Quakes nearby 46 km (29 mi) NNW of Viljoenskroon (Orange Free State) (pop: 55,000) | Show on map | Quakes nearby 65 km (40 mi) NNE of Bothaville (Orange Free State) (pop: 71,900) | Show on map | Quakes nearby 68 km (42 mi) W of Paris (Free State) (pop: 71,300) | Show on map | Quakes nearby 81 km (50 mi) SW of Carletonville (Gauteng) (pop: 182,300) | Show on map | Quakes nearby 129 km (80 mi) SW of Krugersdorp (Gauteng) (pop: 378,800) | Show on map | Quakes nearby 185 km (115 mi) SW of Pretoria (Gauteng) (pop: 1,619,400) | Show on map | Quakes nearby |
| Weather at epicenter at time of quake | Overcast Clouds  17.5°C (63 F), humidity: 77%, wind: 2 m/s (4 kts) from N |
| Estimated seismic energy released | 7.1 x 108 joules (197 kilowatt hours, equivalent to 0.169 tons of TNT) | about seismic energy |
Data for the same earthquake reported by different agencies
Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
| Mag. | Depth | Location | Source |
| 2.7 | 10 km | South Africa Region | CGS |
User reports for this quake
At magnitude 2.7, this quake might have been felt very close to the epicenter and under calm conditions.User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Earlier earthquakes in the same area
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