To create Sandquake, the artists buried a long length of polythene tubing in the sand at a beach in the Camargue, in France. The tubing was then inflated so that it gradually erupted out of the sand.

Filmed by Gerry Schum and planned as a contribution to the Land Art edition of his Television Gallery, the performance of this artwork could not be properly consummated, because more than half the length of the buried tubing was dug up and stolen by an unknown party before the event was recorded.