FairbanksValdezChukchi Prudhoe Bay
SeaBering
SeaGulf of AlaskaPrince William SoundRUSSIA ALASKA CANADA00
300 Kilometers300 MilesKodiak
IslandTrans-Alaska
PipelinePopulations that
are recovering
Clams
Intertidal communities
Orcas
Marbled murrelets
Mussels
Sea ottersPopulations that
are not yet recovering
Common loons
Cormorants (3 species)
Harbor seals
Harlequin ducks
Pacific herring
Pigeon guillemotsVermilion
Bay
Atchafalaya
Bay VeniceBay St LouisMobileBreton
AtchafalayaBay SoundTerrebonne
BayVeniceBay St Louis
OrleansNew GulfportMobile Milton
Pensacola Freeport
St. Andrew
Breton
SoundMississippi Canyon 252
Incident LocationTrajectory
Uncertainty
Light
Medium
Heavy
Potential
beached oilAmount spilled
Year (million barrels of oil) Event Location
1910 9 Drilling rig hits pressured oil pocket Kern County, California
1991 6 Oil dumped by Iraqi army during first Gulf War Kuwait
2010 4 to 5 Deepwater Horizon oil rig fails Gulf of Mexico, south of Louisiana
1979 2.5 to 3.5 Exploratory well Ixtoc I fails Bay of Campeche, Gulf of Mexico
1979 2.1 Oil tankers Atlantic Empress and Aegean Captain collide Trinidad and TobagoIntegral Consulting, “2005 Assess-
ment of Lingering Oil and Resource
Injuries from the Exxon Valdez Oil
Spill (Restoration Project 040776).”Natalie B. Fobes/NG Image Collection© Christopher Morris/VII/CorbisCompiled from Casselman, A., (2012).
10 Biggest Oil
Spills in History. Popular Mechanics. Moss, L., (2010).
The 13 Largest Oil Spills in History. Microsoft News
Network, July 12, 2010; Harvey, S. (2010). “California’sLegendary Oil Spill”.Los Angeles Times, June 13, 2010.a. A week after the oil spill,
a rising tide lifts oil from
an island in Prince William
Sound, Alaska, 1989.b. The extent of the Exxon Valdez
oil spill (black arrows). Water
currents caused the slick to spread
rapidly for hundreds of kilometers.c. Nearshore coastal wildlife status, Prince
William Sound, Alaska, 2005.d. Oil released in the Deepwater Horizon event reached the
southern coast of the United States from Louisiana to Florida.e. A brown pelican covered with oil from the Deepwater
Horizon spill tries to fly.f. Five largest oil spills in world history. The Exxon Valdez spill, while not among the top
ten spills in world history, was particularly harmful because it occurred in a highly sensitive
coastal environment.✓✓THE PLANNER
Environmental InSight
The Exxon Valdez and Deepwater
Horizon oil spillsÊ UÊ }ÕÀiʣǰ££429