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Moderate mag. 4.0 earthquake - 6.7 km east of Orkney, South Africa, on 2018-10-09 22:19:33 +02:00

Moderate mag. 4.0 earthquake - 6.7 km east of Orkney, South Africa, on 2018-10-09 22:19:33 +02:00 Moderate mag. 4.0 earthquake - 6.7 km east of Orkney, South Africa, on 2018-10-09 22:19:33 +02:00

Moderate magnitude 4.0 earthquake at 5 km depth

9 Oct 22:26 UTC: First to report: USGS after 2 hours and 7 minutes.

Earthquake details

Date & timeOct 9, 2018 20:19:33 UTC
Local time at epicenter2018-10-09 22:19:33 +02:00
Depth5.0 km
Epicenter latitude / longitude26.9932°S / 26.7383°E (Dr Kenneth Kaunda District Municipality, North West, South Africa)
Antipode26.993°N / 153.262°W
Shaking intensityWeak shaking
Felt2 reports
Primary data sourceUSGS (United States Geological Survey)
Nearby towns and cities7 km (4 mi) ESE of Orkney (North-West) (pop: 145,800) | Show on map | Quakes nearby
17 km (10 mi) S of Stilfontein (North-West) (pop: 93,100) | Show on map | Quakes nearby
17 km (11 mi) SSE of Klerksdorp (North-West) (pop: 178,900) | Show on map | Quakes nearby
32 km (20 mi) NW of Viljoenskroon (Orange Free State) (pop: 55,000) | Show on map | Quakes nearby
46 km (28 mi) NNE of Bothaville (Orange Free State) (pop: 71,900) | Show on map | Quakes nearby
47 km (29 mi) SW of Potchefstroom (North-West) (pop: 123,700) | Show on map | Quakes nearby
138 km (85 mi) SW of Soweto (Gauteng) (pop: 1,695,000) | Show on map | Quakes nearby
157 km (97 mi) SW of Johannesburg (Gauteng) (pop: 2,026,500) | Show on map | Quakes nearby
166 km (103 mi) SE of Mahikeng (North-West) (pop: 14,000) | Show on map | Quakes nearby
200 km (124 mi) SW of Pretoria (Gauteng) (pop: 1,619,400) | Show on map | Quakes nearby
Estimated seismic energy released6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 tons of TNT) | about seismic energy
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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.
4.05 km- 6km ESE of Orkney, South AfricaUSGS

User reports for this quake (4)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Wolmaransstad / Very weak shaking (MMI II)
Klerksdorp, Dr Kenneth Kaunda District Municipality, North-West (18.3 km NNW of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Rustenburg (153.5 km NNE of epicenter) [Map] / not felt (reported through our app)
Rustenburg / not felt
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