Tambora Indonesia Eruption. Mount tambora is an active volcano on the island of sumbawa in indonesia. In 1815 mount tambora on the island of sumbawa in the dutch east indies, modern day indonesia, erupted.
Mount tambora, or tomboro, is an active stratovolcano in west nusa tanagra, sumbawa, indonesia in one of the lesser sunda islands of indonesia.it was formed due to the active subduction zones beneath it, and before its 1815 eruption, it was more than 4,300 metres (14,100 feet) high, making it one of the tallest peaks in the indonesian archipelago. The 1815 eruption of tambora was the largest eruption in historic time. Caldera collapse at the end of the eruption destroyed 30 km3 of the mountain and formed a 6 km wide and 1250 m deep caldera.
An estimated 150 cubic kilometers (36 cubic miles) of tephra—exploded rock and ash—resulted, with ash from the eruption recognized at least 1,300 kilometers (808 miles) away to the northwest.
In 1816, known as the year without a summer, gases, ashes and. On april 10, 1815, indonesia's island of sumbawa became ground zero for the worst volcanic eruption in modern times—and a chilling example of a widespread climate catastrophe. The 1815 eruption of tambora (sumbawa, indonesia) ejected about 30 to 80 times more ash than did mount st. Tambora stood over 14,000 feet high in 1815, but when it blew its stack it hurled more than 4,000 feet off the top of it, leaving a crater more than four miles across and 2,000 feet deep.