Download Indonesia Mount Tambora Eruption Background. The magnitude of the explosion itself is difficult to fathom. The volcano, which began rumbling on april 5, killed almost 100,000 people directly and indirectly.
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.
Historians regard it as the volcano eruption with the deadliest known direct impact: 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. Therefore, volcanic activity in indonesia is continuously monitored, including that of mount tambora. The magnitude of the explosion itself is difficult to fathom.