The largest volcanic eruption in recorded history is the eruption of Mount Tambora in Indonesia, which occurred in April 1815. This catastrophic event was classified as a "VEI-7" eruption on the Volcanic Explosivity Index, resulting in significant global climatic effects. The eruption led to the death of tens of thousands of people, both directly and indirectly, through the resulting agricultural disruption, known as the "Year Without a Summer" in 1816. The ash cloud ejected into the atmosphere caused drastic temperature drops across the globe, influencing weather patterns and leading to crop failures. Mount Tambora is still considered a major case study in volcanic activity and its environmental impacts.