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This eruption, with a volcanic explosivity index (VEI) of 7, ejected 37–45 km 3 (8.9–10.8 cubic miles) of dense-rock equivalent (DRE) material into the atmosphere, [3] and was the most recent confirmed VEI-7 eruption. [4] Although the Mount Tambora eruption reached a violent climax on 10 April 1815, [5] increased steaming and small phreatic ...
The main cause of the Year Without a Summer is generally held to be a volcanic winter created by the April 1815 eruption of Mount Tambora on Sumbawa. [7] [8] [9] The eruption had a volcanic explosivity index (VEI) ranking of 7, and ejected at least 37 km 3 (8.9 cu mi) of dense-rock equivalent material into the atmosphere. [10]
The floor of the caldera of Mount Tambora, looking north Tephra layers near the caldera (left) and summit (background) of Mount Tambora. A team led by the Swiss botanist Heinrich Zollinger arrived on Sumbawa in 1847. Zollinger sought to study the area of eruption and its effects on the local ecosystem. He was the first person after the eruption ...
Three great columns of flame rose in the sky over Mount Tambora on April 10, 1815. The long-dormant Indonesian volcano had rumbled to life five days earlier with a thunderous detonation followed.
The only unambiguous VEI-7 eruption to have been directly observed in recorded history was Mount Tambora in 1815 and caused the Year Without a Summer in 1816. The Minoan eruption of Thera in the middle of the second millennium BC may have been VEI-7, but may have been just shy of the 100 cubic kilometers required.
Mount Tambora, Lesser Sunda Islands, Indonesia: 1815, Apr 10: 7: 160–213 km 3 (38–51 cu mi) of tephra: an estimated 10–120 million tons of sulfur dioxide were emitted, produced the "Year Without a Summer" [23] 1808 ice core event: Unknown eruption near equator, magnitude roughly half Tambora
With indices running from 0 to 8, the VEI associated with an eruption is dependent on how much volcanic material is thrown out, to what height, and how long the eruption lasts. The scale is logarithmic from VEI-2 and up; an increase of 1 index indicates an eruption that is 10 times as powerful.
Pyroclastic flow-induced tsunamis occurred during the 1815 eruption of Mount Tambora, the 1871 eruption of Mount Ruang, the 1883 eruption of Krakatoa, the 1902 eruption of Mount Pelée and the 1994 eruption of Rabaul Volcano. [3] [4] Tsunamis generated by underwater volcanic explosions depend on the energy and water depth of the explosion.