In 1991 the Philippines' Mt. Pinatubo near Clark Air Base awoke after 500 years dormancy. Base officials evacuated non-essential personnel to Subic Bay Navy Base. Soon, the first eruption sent ash and gas towering into the sky. A climactic explosion blew the top off the mountain. Day turned into midnight as thick ash blocked the sun and pumice and rock rained down. Aircraft hangars, warehouses and buildings collapsed. Earthquakes repeatedly rattled...