"A massive earthquake strikes the United States, which destroys the West Coast and unleashes a massive flood that threatens to destroy the East Coast as well."
Lois Wilson
as Helen Webster
Sidney Blackmer
as Martin Webster
Peggy Shannon
as Claire Arlington
Matt Moore
as Tom
Fred Kohler
as Jepson
Edward Van Sloan
as Professor
Samuel S. Hinds
as Chief Forecaster
Fred 'Snowflake' Toones
as Townsman
Marianne Edwards
as Marianne Webster
Ronnie Cosby
as Ronny Webster
Philo McCullough
as Bellamy / Gang Leader
Lane Chandler
as Jack
Felix E. Feist
Director
Corson Jowett
Sound
Harold Dodds
Casting
Burt Kelly
Producer
Val Burton
Original Music Composer
Rose Loewinger
Editor
Bert Eason
Assistant Camera
Samuel Bischoff
William Saal
John F. Goodrich
Screenplay
Norbert Brodine
Director of Photography
Warren Duff