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Mount Tambora erupts, killing 12,000 people. This was the largest volcanic eruption in recorded history.
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A major earthquake struck Sumatra, killing thousands. It caused a devastating tsunami which led to several thousand fatalities.
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The Krakatoa volcano erupted leading to at least 36,000 deaths. The after effects included a tsunami and over 70% of the island of Krakatoa was destroyed.
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A very large earthquake followed by a tsunami in the Banda Sea caused widespread damage but no fatalities.
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In 1997-1998 a series of forest fires broke out, causing a haze in much of Asia and worldwide environmental damage.
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A magnitude 9.1 earthquake followed by a tsunami affected fourteen nations with Indonesia worst affected. The tsunami killed a total of approximately 230,000 people.
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Cyclone Cempaka struck southern Java causing flooding and landslides. At least fourteen people killed.
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A magnitude 7.5 earthquake followed by a tsunami struck Sulawesi and led to the deaths of at least 4,340 people and injured about 10,679 with about 667 missing.
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The eruption of the Anak Krakatau volcano and underwater landslides caused the 2018 Sunda Strait tsunami. It led to the deaths of at least 437 people and injured more than 14095.
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Semeru erupted for the first time in January 2021, the second time in December 2021, and a third time on 6 December 2021.