THE NIGHT THE WORLD EXPLODED (1957)

Dr. Conway (William Leslie) has perfected a machine that predicts earthquakes, and has determined that one will strike California within 24 hours while a computer analysis determines that the entire world could explode within a little more than 28 days. Director: Fred F. Sears. Cast: William Leslie, Kathryn Grant, Tris Coffin and Raymond Greenleaf.