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1820817
Deepwater Horizon Oil Spill
Description
Case study of a manmade disaster
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geography
option: hazards and disasters
ib
Mind Map by
rasan.anisha
, updated more than 1 year ago
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Created by
rasan.anisha
over 9 years ago
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Resource summary
Deepwater Horizon Oil Spill
Basic Info
Lasted from 22nd April 2010 until 15th July (86 days)
Affected large area of Gulf of Mexico and sections of the USA Gulf coast
Oil slick as large as 75,000sq.kms
Oil had come ashore on coasts of Louisiana, Mississippi, Alabama and Florida by first week in June
Largest marine oil spill in history
70,000 barrels of oil a day
Total oil released 4,900,000 barrels
Exxon Valdez - 261,905
Causes
Explosion triggered by bubble of methane gas on Deepwater Horizon offshore oil platform
Owned by Transocean Ltd, under a BP contract
After explosion, oil platform sank causing crude oil to escape from riser
Sank in 1,500m of water
Continued despite many attempts by BP to plug well
Spread by wind drive waves and currents
IMPACTS
Economic Impacts
Fishing communities along Gulf of Mexico affected
Fishing banned in 36% of Gulf federal waters - restarted in Mid-July
Closure of oyester beds and shrimp operations
$962million a year
20% of nation's commercial seafood production
lost tourist revenues
economic impact expected to exceed $23billion
Cleanup costs $6million a day
TOTAL COST - $40BILLION
Environmental Impacts
6000 birds found dead
600 turtles and 100 dolphins found dead
impact on wildlife was little as occurred 80km from shore
strings of weathered oil sighted moving towards Mississippi river threatening thousands of migrating ducks and geese
Human
11 deaths
17 injured
Evaluation
BP failure to capture oil for nearly 3 months
vulnerability of coastal ecosystems and wildlife to oil spill
location of oil spill only 80kms from land
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