The Sigsbee Deep is the deepest part of the Gulf of Mexico. Estimates of its maximum depth range between 3,750 to 4,384 meters. It is located in the western part of the gulf, and was named for Captain Charles Dwight Sigsbee, the captain of the USS Maine, which exploded in Havana Harbor in Cuba in 1898. Captain Charles D. Sigsbee Charles Dwight Sigsbee (January 16, 1845 - July 13, 1923) was an admiral in the United States Navy. ... Four ships of the United States Navy have borne the name USS Maine, named for the 23rd state. ... Havana (Spanish: San Cristóbal de La Habana; UN/LOCODE: Habana (CU HAV)) is the capital of Cuba and, with a population of 2. ... 1898 was a common year starting on Saturday (see link for calendar). ...