Dr. David Conway has been developing a machine that will allow him to predict earthquakes and other seismic activity. By the time it's perfected the machine predicts a major earthquake for the next day. He and his colleague Dr, Ellis Morton try to forewarn the Governor but it's too late to do anything. The subsequent earthquake is devastating. They head deep into the Carlsbad caverns to determine what might be causing the pressure. What they find is an unknown volatile mineral that is safe when wet but expands and eventually explodes when dry. The mineral has been pushed to the surface and their only solution is to flood those areas where the mineral is found.

Superquake tilts the earth!

1958 Hollywood Classic.

Director: Fred F. Sears
Stars: Kathryn Grant, William Leslie, Tristram Coffin

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