Aptly-named movie that came out at the end of the Hollywood disaster-movie cycle of the 1970s.
An all-too-absurd plot includes a research facility built right over the crater of an active volcano; coupled with a holiday resort constructed not too far from that! This mind-boggling setup hampers what could have been a fun film.
The final nail in the coffin for these increasingly-disastrous disaster films was the movie parody of Airplane (1980); making anyone financing such a movie a brave backer, indeed, since they would then have to run the very real risk of being completely laughed-off the screen.
This movie is only really watchable because of the star power and charisma of the leading players - particularly a well-paired Jacqueline BISSET and Paul NEWMAN. And the weakness of the special effects makes it all-too-likely that most of the movie's budget was spent on the stars.
Worst of all, too many good-looking women get killed in this movie to make it any more than an inadequate time-passer - you simply cannot kill-off Barbara CARRERA and get away with it, you simply can't!