Past earthquakes in Allanridge, Orange Free State, South Africa: 2021 - list, stats and map

Updated May 20, 2022 02:31 GMT -

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Quakes in 2021:

2 quakes above magnitude 4
26 quakes between magnitude 3 and 4
188 quakes between magnitude 2 and 3

In 2021, Allanridge was shaken by 2 quakes of magnitude 4.0 or above, 26 quakes between 3.0 and 4.0, and 188 quakes between 2.0 and 3.0.

Strongest quake: Mag. 4.4 | 19 km E of Stilfontein, South Africa -

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Showing quakes magnitude 0.1 or higher (226 quakes):

Date and time	Mag Depth	Nearest volcano (distance)	Location	Details	Map
Tuesday, December 28, 2021 GMT (1 quake)
Dec 28, 2021 1:47 pm (GMT +2) (Dec 28, 2021 11:47 GMT)	3.0 10 km		2.4 km north of Carletonville, South Africa 1 report	More	Map
Monday, December 27, 2021 GMT (1 quake)
Dec 27, 2021 2:09 pm (GMT +2) (Dec 27, 2021 12:09 GMT)	2.9 10 km		13 km southwest of Westonaria, South Africa 1 report	More	Map
Sunday, December 26, 2021 GMT (2 quakes)
Dec 26, 2021 8:07 pm (GMT +2) (Dec 26, 2021 18:07 GMT)	2.7 10 km		24 km west of Carletonville, South Africa 1 report	More	Map
Dec 26, 2021 9:17 am (GMT +2) (Dec 26, 2021 07:17 GMT)	2.5 10 km		5.2 km northeast of Stilfontein, South Africa	More	Map
Thursday, December 23, 2021 GMT (1 quake)
Dec 23, 2021 4:17 am (GMT +2) (Dec 23, 2021 02:17 GMT)	2.2 10 km		8.8 km east of Carletonville, South Africa 1 report	More	Map
Wednesday, December 22, 2021 GMT (2 quakes)
Dec 22, 2021 10:04 pm (GMT +2) (Dec 22, 2021 20:04 GMT)	2.7 10 km		2.4 km north of Stilfontein, South Africa	More	Map
Dec 22, 2021 8:39 am (GMT +2) (Dec 22, 2021 06:39 GMT)	2.6 10 km		6.6 km west of Kutloanong, South Africa 1 report	More	Map
Monday, December 20, 2021 GMT (1 quake)
Dec 20, 2021 11:33 pm (GMT +2) (Dec 20, 2021 21:33 GMT)	2.6 10 km		10.1 km southwest of Westonaria, South Africa	More	Map
Thursday, December 16, 2021 GMT (2 quakes)
Dec 16, 2021 4:18 am (GMT +2) (Dec 16, 2021 02:18 GMT)	3.0 10 km		North West, 15 km southwest of Westonaria, South Africa	More	Map
Dec 16, 2021 2:59 am (GMT +2) (Dec 16, 2021 00:59 GMT)	4.2 5 km		4.2 km east of Fochville, North West, South Africa 5 reports	More	Map
Wednesday, December 15, 2021 GMT (1 quake)
Dec 15, 2021 3:40 am (GMT +2) (Dec 15, 2021 01:40 GMT)	2.2 10 km		17 km west of Welkom, South Africa	More	Map
Tuesday, December 14, 2021 GMT (1 quake)
Dec 14, 2021 9:50 am (GMT +2) (Dec 14, 2021 07:50 GMT)	2.5 10 km		10.6 km southeast of Westonaria, South Africa	More	Map
Sunday, December 12, 2021 GMT (2 quakes)
Dec 12, 2021 11:30 pm (GMT +2) (Dec 12, 2021 21:30 GMT)	? n/a		7.7 km east of Orkney, South Africa (unconfirmed) 1 report	More	Map
Dec 12, 2021 3:10 am (GMT +2) (Dec 12, 2021 01:10 GMT)	? n/a		Orange Free State, 2.3 km west of Maputsoe, Leribe, Lesotho (unconfirmed) 1 report	More	Map
Saturday, December 11, 2021 GMT (1 quake)
Dec 11, 2021 2:42 am (GMT +2) (Dec 11, 2021 00:42 GMT)	2.7 10 km		3.3 km southeast of Stilfontein, South Africa	More	Map
Friday, December 10, 2021 GMT (1 quake)
Dec 10, 2021 6:13 pm (GMT +2) (Dec 10, 2021 16:13 GMT)	2.5 10 km		20 km south of Johannesburg, Gauteng, South Africa	More	Map

Estimated combined seismic energy released: 5.7 x 10¹¹ joules (160 megawatt hours, equivalent to 137 tons of TNT) | about seismic energy

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