AllMovie

As Electronic Earthquake opens, the viewer sees a strange cable that flows into the harbor near Metropolis. The cable slinks along the harbor to the underwater lair of a brilliant Native American scientist. The scientist visits the Daily Planet, where he demands that Metropolis be returned to his people, who settled there long ago. Editor Perry White refuses to print the scientist's demand, at which point the scientist tells him that he will destroy the city if his demand is not met. He returns to his secret lab, followed by Lois Lane, who smells a good story. Unfortunately, Lois is discovered and captured, and the scientist proceeds with his plan. Utilizing his cable, he sends enormous surges of electricity under the ground, triggering a terrific earthquake. Superman finds the source of the earthquake and breaks the main cable, then begins dismantling various other cables from the lab. This unfortunately causes the lab to start flooding. Superman saves Lois in the nick of time, and succeeds in capturing the evil scientist as well.