Today in History, April 10: 1815 – The Mt. Tambora volcano eruption of 1815 spews between 19 and 38 cubic miles of “ejecta” material into the atmosphere over a three month period beginning today. The explosion was heard 1,200 miles away (if it had occurred in Las Vegas, we in Tulsa would have heard it). Approximately 72,000 people died as a resort, the majority from starvation and disease as the climate was changed world wide. Crops failed all across the Northern Hemisphere and there was no real summer that year. Tambora was the largest eruption in recorded history.