11. Pinatubo in the Philippine islands in 1991 and provided critical humanitarian relief.12. Pinatubo in 1991 and its aftermath affected the boundaries of the parish.13. It also contains paintings of the Pinatubo eruption in 1991. 14. Pinatubo as Richard vividly narrates its earth-shattering eruption in 1990.15. Pinatubo 's lahar exemplifies how best to poorly construct an ineffectual spillway.16. The 1991 eruption of nearby Mount Pinatubo hastened the departure of the Americans. 17. Mount Pinatubo is about 55 miles north of Manila. 18. Clark was forced to close following the Mount Pinatubo eruption in June 1991. 19. In modern times, Mount Saint Helens and Mount Pinatubo have erupted catastrophically. 20. The oldest eruption of modern Pinatubo , Inararo, was also its largest.
