The film is about the circle of volcanoes and seismic activity that rings the Pacific Ocean. Shows the birth of a volcano in Chile, the eruption of Mt. St. Helens, a volcano in Sakurajima, Japan, the 1989 San Francisco earthquake and other volcanoes.

Videodisc release of a 1991 production.

Ring of fire -- San Francisco quake of '90 -- Mt. St. Helens -- Floating on hot liquid -- Learning to live with a volcano -- Buddhas keep watch -- Center of the ring -- End credits.