During the days of April 6-11, 1815, one of the worst volcanic eruptions occurred on Sumbawa Island in modern-day Indonesia. The eruption of Mt. Tambora was rated four times stronger than the 1883 eruption of nearby Krakatao. The square miles of dust and pumice to hit the atmosphere caused 'The Year Without A Summer' in the U.S., halfway around the world. Tens of thousands died either directly from the eruption or from disease and starvation in the months that followed.