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Strong mag. 6.7 earthquake - Botswana on Monday, 3 April 2017 - information

Very strong mag. 6.7 earthquake - Ghanzi, 233 km north of Gaborone, Botswana, on Monday, April 3, 2017 at 17:40 GMT

Very strong mag. 6.7 earthquake - Ghanzi, 233 km north of Gaborone, Botswana, on Monday, April 3, 2017 at 17:40 GMT Very strong mag. 6.7 earthquake - Ghanzi, 233 km north of Gaborone, Botswana, on Monday, April 3, 2017 at 17:40 GMT

Very strong magnitude 6.7 earthquake at 22 km depth

3 Apr 17:50 UTC: First to report: GFZ after 10 minutes.
Apr 3 17:51: Magnitude recalculated from 6.8 to 6.7.
Apr 3 17:52: Magnitude recalculated from 6.7 to 6.8.
Apr 3 18:05: Magnitude recalculated from 6.8 to 6.7.
Hypocenter depth recalculated from 10.0 to 22.0 km.

Earthquake details

Date & timeApr 3, 2017 17:40:17 UTC
Local time at epicenter
Depth22.0 km
Epicenter latitude / longitude22.66°S / 25.22°E (Ghanzi, Botswana)
Antipode22.66°N / 154.78°W
Shaking intensityModerate shaking
Felt487 reports
Primary data sourceGFZ (German Research Centre for Geosciences)
Nearby towns and cities142 km (88 mi) WNW of Kalamare (Central) (pop: 2,340) | Show on map | Quakes nearby
144 km (89 mi) SSW of Lethakane (Central) (pop: 18,100) | Show on map | Quakes nearby
156 km (97 mi) WSW of Serowe (Central) (pop: 47,400) | Show on map | Quakes nearby
171 km (106 mi) WNW of Mahalapye (Central) (pop: 44,500) | Show on map | Quakes nearby
196 km (122 mi) W of Palapye (Central) (pop: 30,700) | Show on map | Quakes nearby
196 km (122 mi) N of Molepolole (Kweneng) (pop: 63,200) | Show on map | Quakes nearby
233 km (145 mi) NNW of Gaborone (pop: 208,400) | Show on map | Quakes nearby
288 km (179 mi) SW of Francistown (City of Francistown) (pop: 90,000) | Show on map | Quakes nearby
383 km (238 mi) ESE of Ghanzi (pop: 9,930) | Show on map | Quakes nearby
456 km (284 mi) NW of Pretoria (Gauteng, South Africa) (pop: 1,619,400) | Show on map | Quakes nearby
Estimated seismic energy released7.1 x 1014 joules (197 gigawatt hours, equivalent to 1.7 x 105 tons of TNT or 10.6 atomic bombs!) | about seismic energy
Show interactive Map
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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.
6.722 kmBotswanaGFZ
6.529 km- 132km W of Moijabana, BotswanaUSGS
shake map
(shakemap: USGS)


Seismic station: Tegucigalpa, Honduras (TGUH/CU network) | Distance from quake: 12882 km / 8005 mi | Show on map | Station Info
Seismic station Tegucigalpa, Honduras: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.02-2.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (604)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
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Gaborone / Very weak shaking (MMI II) : I felt the bed shaking and i ran outside and saw many people outside their houses..  
MOCHUDI / Strong shaking (MMI VI)
Mahalapye, Central (172.3 km ESE of epicenter) [Map] / Strong shaking (MMI VI) : Very scared as windows, doors and roofing rattled and even walls were vibrating. Being the first real life experience it was truly an indicator of God's way of reminding us of His presence.  
Masunga (222.9 km ENE of epicenter) [Map] / Light shaking (MMI IV)
Chobe river area near Kasane / Moderate shaking (MMI V)
Harare Zimbabwe (799.9 km NE of epicenter) [Map] / Weak shaking (MMI III)
broadhurs, Gaborone / Moderate shaking (MMI V)
Pietermaritzbug (924.4 km SSE of epicenter) [Map] / Weak shaking (MMI III) : Felt light shaking while laying on the sofa playing with my phone. 2 others in the house heard a strange noise around that time. We discussed the strange event amongst ourselves, but only read about the earthquake the next morning.  
Rakops (257.5 km NNW of epicenter) [Map] / Strong shaking (MMI VI) : Difficulty experienced in walking steadily.  
university of botswana,gaborone / Moderate shaking (MMI V)
Gaborone / Very weak shaking (MMI II)
Shawinigan, Quebec, Canada / Light shaking (MMI IV) : Le sol a tremblé pendant environ 2 secondes, toutefois un bon vrombissement s'est fait entendre. environ 15 secondes avant le tremblement, les oiseaux aux alentours étaient nerveux et criaient et volaient partout.  
Vaalwater / Very weak shaking (MMI II) : I was bu  
Gaborone (217.7 km SSE of epicenter) [Map] / Moderate shaking (MMI V)
Ruretse, just outside Gaborone / Moderate shaking (MMI V) : Our dogs and horses were alarmed.  
near Gaborone (241.9 km SSE of epicenter) [Map] / Strong shaking (MMI VI) : I was on the second floor   
gaborone / Strong shaking (MMI VI)
Pretoria, SA / Light shaking (MMI IV) : Was on the couch. Felt it through my body. My wine in glass on table was sloshing. No windows rattled.  
gaborone /segoditshane / Moderate shaking (MMI V) : felt shaking. i was by the fence and it was shaking even the trees were shaking not swinging as usual, called my children who were in house and said they were puzzled as everything was shaking  
Kgomokasitwa Village / Strong shaking (MMI VI) : I felt like something big was moving underground with huge noise, trembling,shaking the houses, trees and even the chair that i was sitting on. WE Prayed outside!  
Botswana / Moderate shaking (MMI V)
Windhoek, Namibia / not felt : Nothing  
JWANENG (247.7 km SSW of epicenter) [Map] / Moderate shaking (MMI V)
Maun / Strong shaking (MMI VI) : i thought people were stealing my house. I could see and feel the walls moving. While shaking, i thought maybe im feeling a little bit drowsiness and went outside the house. that is where i found everybody astonished about what happened.  
Serowe / Moderate shaking (MMI V)
Letlhakane-Boteti region / Light shaking (MMI IV) : Letlhakane: First thought it  
gaborone north / Violent shaking (MMI IX) : It was very scary but there was no damage  
Sandringham, Johannesburg, South africa (489.4 km SE of epicenter) [Map] / Light shaking (MMI IV)
maputo / Light shaking (MMI IV) : on a 14th floor felt like coming out of a boat after a sea day, for about 3-5 sec  
Lonatse Botswana / Strong shaking (MMI VI) : First it sounded like an extra ordinary truck   
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[More info]

Recorded aftershocks, latest first (4 quakes)

Date and timeMag
Aug 12, 2017 02:37
6 years ago - felt

10 km
122 km N of Gaborone, BotswanaMore
Jul 4, 2017 11:37
6 years ago - felt

10 km
Ghanzi, 244 km N of Gaborone, BotswanaMore
Apr 8, 2017 19:55
6 years ago

14 km
Ghanzi, 250 km N of Gaborone, BotswanaMore
Apr 5, 2017 00:55
6 years ago - felt

10 km
Ghanzi, 217 km N of Gaborone, BotswanaMore

Earlier earthquakes in the same area

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