Sinking of USS Scorpion

Date: May 22, 1968 • Location: Calheta, Portugal

The nuclear-powered submarine USS Scorpion sinks with 99 men aboard, 400 nautical miles (740 km) southwest of the Azores.

A submarine is a watercraft capable of independent operation underwater. The term "submarine" is also sometimes used historically or informally to refer to remotely operated vehicles and robots, or to medium-sized or smaller vessels. Submarines are referred to as boats rather than ships regardless of their size.