Nnukwu mgbawa na 1997 site na fissure n'ebe ugwu ọdịda anyanwụ nke Pillan Patera mepụtara ihe karịrị 31 cubic kilomita (7.4 cu mi) nke lava ọhụrụ n'ime oge 2 1⁄2- ruo 5 1⁄2-ọnwa, ma mesịa jupụta n'ala Pillan Patera. Nleba anya site na Galileo na-atụ aro mkpuchi mkpuchi lava na Pillan n'etiti 1,000 na 3,000 square mita (11,000 na 32,000 sq ft) kwa nke abụọ n'oge mgbawa 1997. Achọpụtara na Pillan nwere 10 m3 (3 ft) ọkpụrụkpụ, ma e jiri ya tụnyere 1 m (1 ft) ọkpụrụkpụ mmiri na-ahụ anya na mgbawa infometic na Prometheus na Amethyst.
31 cubic kilomita (7.4 cu mi)