The 1815 eruption of Mount Tambora, on the island of Sumbawa in Indonesia, was one of the most powerful in recorded history and is classified as a VEI -7 event. No idea what a VEI-7 means but the fact of the matter is that with the eruption and the tsunamis, tens of thousands of people were killed. According to History1800s.com: It has been estimated that Mount Tambora stood approximately 12,000 feet tall before the 1815 eruption, before the top one-third of the mount...