Prestige Oil Spill - Event

Event

The Prestige was a Greek-operated, single-hulled oil tanker, officially registered in the Bahamas, but with a Liberian-registered single-purpose corporation as the owner.

The ship had a deadweight tonnage, or carrying capacity, of approximately 81,000 tons, a measurement that put it at the small end of the Aframax class of tankers, smaller than most carriers of crude oil but larger than most carriers of refined products. It was classed by the American Bureau of Shipping and insured by the London Steam-Ship Owners' Mutual Insurance Association, a shipowners' mutual known as the London Club.

On November 13, 2002, while the Prestige was carrying a 77,000 metric tons cargo of two different grades of heavy fuel oil, one of its twelve tanks burst during a storm off Galicia, in northwestern Spain. Fearing that the ship would sink, the captain called for help from Spanish rescue workers, with the expectation that the vessel would be brought into harbour. However, pressure from local authorities forced the captain to steer the embattled ship away from the coast and head northwest. Reportedly after pressure from the French government, the vessel was once again forced to change its course and head southwards into Portuguese waters in order to avoid endangering France's southern coast. Fearing for its own shore, the Portuguese authorities promptly ordered its navy to intercept the ailing vessel and prevent it from approaching further.

With the French, Spanish and Portuguese governments refusing to allow the ship to dock in their ports, the integrity of the single-hulled oil tanker was deteriorating quickly and soon the storm took its toll when it was reported that a 40-foot (12 m) section of the starboard hull had broken off, releasing a substantial amount of oil.

At around 8:00 AM on November 19, the ship split in half. It sank the same afternoon, releasing over 20 million US gallons (76,000 m3) of oil into the sea. The oil tanker was reported to be about 250 kilometers from the Spanish coast at that time. An earlier oil slick had already reached the coast. The Greek captain of the Prestige, Apostolos Mangouras, was taken into custody, accused of not co-operating with salvage crews and of harming the environment.

After the sinking, the wreck continued leaking oil. It leaked approximately 125 tons of oil a day, polluting the sea bed and contaminating the coastline, especially along the territory of Galicia. The affected area is not only a very important ecological region, supporting coral reefs and many species of sharks and birds, but it also supports the fishing industry. The heavy coastal pollution forced the region's government to suspend offshore fishing for six months.