Porcupine Seabight

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Northeast Atlantic bathymetry, with Porcupine Bank and Porcupine Seabight labelled.

The Porcupine Seabight is a deep-water basin in the northeastern Atlantic Ocean. Lying south-west of Ireland and south-east of the Porcupine Bank, it measures about 180 nautical miles (330 km) north to south by 100 nautical miles (190 km) east to west. The feature is shaped roughly like an amphitheatre; to the south-west is the deepest point, approximately 9,800 feet (3,000 m) below sea level. Beyond the deepest point and south-west of the Porcupine Bank lies the Porcupine Abyssal Plain.

The basin lent its name to Operation Seabight, an Irish drug-bust of November 2008.[1]


  1. ^ "€750m cocaine seizure". Irish Examiner. 2008-11-07. Retrieved 2008-11-08.