Mount Pinatubo is an active stratovolcano in the Zambales Mountains of the Philippines. It is notorious for its June 1991 eruption, the second-largest terrestrial eruption of the 20th century. Effects were felt worldwide, and surrounding areas were heavily damaged by pyroclastic surges — fluidised masses of turbulent gas and rock fragments ejected during the eruption. 15.140887°, 120.349685° Source imagery: Google Timelapse | Daily Overview