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This makes it one of the most violent eruptions in the last 5000 years, comparable to the Tianchi eruption of Baekdu at around 1000 AD and the 1815 eruption of Tambora.
This was one of the most violent eruptions in the last 5000 years (alongside the Tianchi eruption of Baekdu at around 1000 and the 1815 eruption of Tambora), with a Volcanic Explosivity Index rating of 7; and there appears to be a correlation, to within a few years, of a year in which the sky was red over Rome and China.