Weak mag. 2.2 earthquake - 17 km west of Welkom, South Africa, on Wednesday, Dec 15, 2021 at 3:40 am (GMT +2) -
Quake Data | Interactive map | User Reports | Earlier quakes here | Quakes in South Africa | Orange Free State | Gauteng
Weak magnitude 2.2 earthquake at 10 km depth
15 Dec 01:49 UTC: First to report: CGS after 9 minutes.
Earthquake details
| Date & time | Dec 15, 2021 01:40:03 UTC - |
| Local time at epicenter | Wednesday, Dec 15, 2021 at 3:40 am (GMT +2) |
| Status | Confirmed |
| Magnitude | 2.2 |
| Depth | 10.0 km |
| Epicenter latitude / longitude | 28.005°S / 26.563°E  (Lejweleputswa District Municipality, Orange Free State, South Africa) |
| Antipode | 28.005°N / 153.437°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 | 17 km (11 mi) W of Welkom (pop: 431,900) | Show on map | Quakes nearby 26 km (16 mi) SE of Wesselsbron (pop: 42,600) | Show on map | Quakes nearby 27 km (16 mi) SW of Kutloanong (pop: 95,000) | Show on map | Quakes nearby 29 km (18 mi) SSW of Allanridge (pop: 31,700) | Show on map | Quakes nearby 32 km (20 mi) WNW of Virginia (pop: 122,500) | Show on map | Quakes nearby 45 km (28 mi) W of Hennenman (pop: 22,800) | Show on map | Quakes nearby 47 km (29 mi) NNW of Theunissen (pop: 34,700) | Show on map | Quakes nearby 77 km (48 mi) WSW of Kroonstad (pop: 104,000) | Show on map | Quakes nearby 129 km (80 mi) NNE of Bloemfontein (pop: 463,100) | Show on map | Quakes nearby 299 km (186 mi) SSW of Pretoria (Gauteng) (pop: 1,619,400) | Show on map | Quakes nearby |
| Weather at epicenter at time of quake | Scattered Clouds  16°C (61 F), humidity: 74%, wind: 3 m/s (5 kts) from NE |
| Estimated seismic energy released | 1.3 x 108 joules (35 kilowatt hours) | 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 |
| 2.2 | 10 km | South Africa Region | CGS |
User reports for this quake
At magnitude 2.2, such a quake wouldn't normally be felt by people except under very favorable conditions.User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Earlier earthquakes in the same area
Click here to search our database for earlier earthquakes in the same area since 1900!
