2017 Botswana earthquake
{{Infobox earthquake
|image =
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| map2 = {{Location map|Botswana#Africa
|relief=1
|width=260
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|lat=-22.658
|long=25.147
|mark=Bullseye1.png
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|local-date = {{start date|2017|04|03|df=y}}
|local-time = 19:40:18 CAT
|timestamp = 2017-04-03 17:40:18
|anss-url = us10008e3k
|isc-event = 610478084
|duration =
|magnitude = 6.5 {{M|w|link=y}}
|depth = {{convert|29|km|abbr=on}}
|location = {{coord|22.658|S|25.147|E|display=inline,title}}
|type =
|affected = Central District
|intensity = {{MMI|VIII}}
|landslide =
|foreshocks =
|aftershocks =
|casualties = 36 injured
|title = 2017 Botswana earthquake
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|countries affected = Botswana
|damage =
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The 2017 Botswana earthquake was a magnitude 6.5 earthquake which occurred in the Central District of Botswana.
It is the second largest earthquake recorded in Botswana next to the 6.7 magnitude earthquake in Maun which occurred in 1952.{{cite news|last1=Chida|first1=Daniel|title=The earthquake was natural- Geoscience Institute|url=https://thevoicebw.com/earthquake-natural-geoscience-institute/|accessdate=9 April 2017|work=The Voice Newspaper Botswana|date=4 April 2017|archive-date=9 April 2017|archive-url=https://web.archive.org/web/20170409201331/https://thevoicebw.com/earthquake-natural-geoscience-institute/|url-status=dead}}
Earthquake
The earthquake which happened at 19:40, local time according to the US Geological Survey. It was felt for 30 seconds in the country's capital of Gaborone and was reportedly felt in neighboring South Africa, Zimbabwe, and Swaziland.{{cite news|title=Strong 6.5-magnitude quake strikes Botswana|url=http://www.news24.com/Africa/News/strong-65-magnitude-quake-strikes-botswana-20170403|accessdate=9 April 2017|work=News24|date=3 April 2017|archive-date=9 April 2017|archive-url=https://web.archive.org/web/20170409201154/http://www.news24.com/Africa/News/strong-65-magnitude-quake-strikes-botswana-20170403|url-status=dead}} At least 36 students were injured in a stampede sparked by the earthquake.{{cite web|url=http://www.gabzfm.com/36-moiyabana-students-injured-stampede-following-earthquake|title=36 Moiyabana Students Injured in a Stampede Following an Earthquake|website=GABZ FM|access-date=April 4, 2017|date=April 4, 2017|archive-date=July 6, 2017|archive-url=https://web.archive.org/web/20170706125038/http://www.gabzfm.com/36-moiyabana-students-injured-stampede-following-earthquake|url-status=dead}}
Geology
The epicenter area of the earthquake is covered by wind-blown sediments and there is no trace of a fault at the surface prior to the earthquake. The phenomenon was suspected to be an artificial earthquake allegedly caused by hydraulic fracking activity in the Central Kalahari Game Reserve. This speculation has been dismissed by the Botswana Geoscience Institute saying that the earthquake was natural, taking note that the earthquake was recorded at a depth of {{convert|29|km|abbr=on}}. Geophysical investigation of the epicenter region show that the earthquake is natural,{{Cite journal|last1=Gardonio|first1=B.|last2=Jolivet|first2=R.|last3=Calais|first3=E.|last4=Leclère|first4=H.|date=2018-07-13|title=The April 2017 Mw6.5 Botswana Earthquake: An Intraplate Event Triggered by Deep Fluids|journal=Geophysical Research Letters|volume=45|issue=17|pages=8886–8896|doi=10.1029/2018gl078297|issn=0094-8276|bibcode=2018GeoRL..45.8886G|s2cid=134667492 |url=https://hal.archives-ouvertes.fr/hal-02185463/file/2018_Gardonio_GRL.pdf}} related to deep mantle fluids moving up the crust and causing the extensional reactivation of an ancient thrust fault.{{Cite journal|last1=Kolawole|first1=F.|last2=Atekwana|first2=E. A.|last3=Malloy|first3=S.|last4=Stamps|first4=D. S.|last5=Grandin|first5=R.|last6=Abdelsalam|first6=M. G.|last7=Leseane|first7=K.|last8=Shemang|first8=E. M.|date=2017-09-09|title=Aeromagnetic, gravity, and Differential Interferometric Synthetic Aperture Radar analyses reveal the causative fault of the 3 April 2017 Mw6.5 Moiyabana, Botswana, earthquake|journal=Geophysical Research Letters|volume=44|issue=17|pages=8837–8846|doi=10.1002/2017gl074620|issn=0094-8276|bibcode=2017GeoRL..44.8837K|s2cid=134584787 }} Slip along a low-angle segment of the fault caused a slight ground deformation at the surface detectable only by satellite radar technology.
See also
References
{{reflist}}
External links
- [https://earthquake.usgs.gov/earthquakes/eventpage/us10008e3k#executive 2017 Botswana earthquake] by the United States Geological Survey
- {{EQ-isc-link|610478084}}
{{Earthquakes in 2017}}
{{Earthquakes in Africa}}
Category:Earthquakes in Africa