When did Mount Pinatubo form?
When did Mount Pinatubo form? Pinatubo’s ancestors began forming about a million years ago, and built a stratovolcano andesite-dacite volcano whose epicenter was at the same site as today. The remains of this ancestor are seen in the old 3.5×4. 5 wide caldera. How was Mount Pinatubo formed? It is a subduction volcano, formed by … Read more