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1994 Bolivia earthquake

Earthquake in Bolivia

Field	Value
title	1994 Bolivia earthquake
timestamp	1994-06-09 00:33:16
isc-event	168418
anss-url	iscgem168418
local-date
local-time	20:33:16
map2	{{Location map	Bolivia
relief	yes
lat	-13.841
long	-67.553
mark	Bullseye1.png
marksize	40
position	bottom
width	250
float	right
caption	}}
magnitude	8.2
depth	631.3 km
location
countries affected	Bolivia
casualties	5 dead (unconfirmed)
intensity

| isc-event = 168418 | anss-url = iscgem168418 | local-date = | local-time = 20:33:16

The 1994 Bolivia earthquake occurred on June 8, 1994 at 20:33 local time. The epicenter was located in a sparsely populated region in the Amazon jungle, 55 km NNW of Reyes, Bolivia.

The Harvard CMT Project assigned it a focal depth of 647 km, while USGS assigned it a depth of 631.3 km. Both assigned it a magnitude of 8.2, It is also tied with the August 19, 2018 Fiji Earthquake as the second largest ever earthquake recorded deep focus earthquake (where the focal depth exceeds 300 km), only behind the 2013 Okhotsk Sea earthquake, while also being the largest in South America.

Description

The rupture was located within the Nazca plate where it is being subducted beneath the mantle of the South American continent. It shook the ground from Argentina to Canada and its oscillations were the first to be captured on a modern seismic network.

Effects

There were unconfirmed reports of five people killed in Peru's Arequipa and Cuzco provinces. Three deaths from Arequipa Province were attributed to a landslide while the other two in Cuzco Province died from falling debris or a heart attack. Many more were injured in landslides in other parts of southern Peru. In Cochabamba, La Paz and Oruro, the windows in many tall structures shattered. There were unverified claims of buildings damaged in Arica, Chile, and Manaus, Brazil. Limited damage to buildings was reported in São Paulo, Brazil, and Toronto, Canada, as well. In Chile, the tremors caused panic among residents of major cities, driving them out of buildings. It also disrupted power and communication services. Due to the earthquake's great depth, it was felt at places far from its epicenter. A geologist with the US Geological Survey described the effects in Los Angeles, California, as a "very gentle motion". Similar effects were observed in Sioux Falls, Sioux City, Minneapolis, and Omaha in the United States.

References

"Latest Earthquakes".
"Latest Earthquakes".
Wakefield, J.. (1995). "Scientists Get a Closer Look at Mechanism of Deep Bolivian Quake". Eos.
(2014-01-01). "Rupture complexity of the 1994 Bolivia and 2013 Sea of Okhotsk deep earthquakes". Earth and Planetary Science Letters.
"Bolivia-Peru: Arequipa, Felt In N And S America". National Centers for Environmental Information.
Broad, William J.. (April 11, 1995). "Bolivia Shakes, and So Does Theory on Deep Quakes". The New York Times.
(1994-06-09). "Major Earthquake in Bolivia Is Felt as Far Away as Toronto". Los Angeles Times.
[http://www.reliefweb.int/rw/RWB.NSF/db900SID/OCHA-64DJMQ?OpenDocument UN DHA Information Report No.1] [[United Nations Department of Humanitarian Affairs]]
{{Cite ANSS. M 8.2 - 55 km NNW of Reyes, Bolivia. 1994. usp0006dzc

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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