Exxon Valdez oil spill
The Exxon Valdez oil spill occurred in Prince William Sound, Alaska, on March 24, 1989. When Exxon Valdez, an oil tanker bound for Long Beach California, struck Prince William Sound's Bligh Reef at 12:04 a.m. and spilled 260,000 to 750,000 barrels of crude oil over the next few days. It is considered to be one of the most devastating human-caused environmental disasters.