This black smoker vent is located at the "Vent 1" site on the South Cleft segment of the Juan de Fuca Ridge at a depth of 2222 meters. It is on top of a 10 m high chimney, and the water forming the plume has an exit temperature of 342°C.

Video was taken during Alvin dive #2783, Marker 12, June 26, 1994.