Around the World Under the Sea
From The Internet Movie Plane Database
Lloyd Bridges (Dr. Doug Standish)
Brian Kelly (Dr. Craig Mosby)
Shirley Eaton (Dr. Margaret E. Hanford)
David McCallum (Dr. Philip Volker)
Keenan Wynn (Hank Stahl)
Marshall Thompson (Dr. Orin Hillyard)
Following the destruction of much of coastal Turkey by a massive tsunami, American scientists Dr. Doug Standish and Dr. Craig Mosby lead the crew of the submarine Hydronaut in a race to plant seismic sensors along fault lines on the ocean floor to create an experimental earthquake detection system in order to prevent other coastal countries from suffering the same fate.
Coast Guard helicopter. Flies Brinkman out to the Diligent and later rescues the survivors from the Hydronaut from the sinking sub.
Lufthansa passenger jet whose pilot spots an erupting undersea volcano and radios Dr. Boren.