Photo Courtesy: NASA
The largest known volcanic eruption of the last 200 years, that of Tambora on Sumbawa Island, Indonesia, occurred in 1815. Enormous volumes of pyroclastic flow followed by caldera collapse created an up to 10m wall of water that devastated the Indonesian shoreline. While the eruption (and aftermath) of Tambora has been credited with the loss of more than 71,000 lives, as many as 10,000 of those are attributed to the resulting tsunami.
Image Courtesy: Ole Nielsen