Volcano Shape

Mount Pinatubo is a Stratovolcano and has a 1,745 meter peak, but after the eruption in 1991, it lowered from 1745 to 1486 m. Mt. Pinatubo has a crest of a 3 kilometer diameter dacite dome formed during an earlier eruption of 1991. Since Mt. Pinatubo is a composite volcano, it has steep sides. Mt. Pinatubo has a 1.5 kilometer long line of vents high on the volcano near the north flank of the summit dome.