2 spots left on Iceland Geo Tour 16-30 July 2022

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
StatusConfirmed
Magnitude4
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
Show interactive Map
[smaller] [bigger]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
If you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable to earthquake science, seismic hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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.DepthLocationSource
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.
Translate
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
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area

Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version
Why is there advertising on this site?
Support us - Help us upgrade our services!
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Improved multilanguage support
  • Tsunami alerts
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Detailed quake stats
  • Additional seismic data sources
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.