There are interesting article from Mr. H. Awang Geologists Satyana Blog's in Indonesia, about the history of the eruption of Mount Krakatau in the Sunda Strait. Apparently, the eruption in 1883 was not the greatest in the history of Krakatoa. Consider the following inscription.
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By Awang H. Satyana
Monday, August 27, 1883 at 10:00 pm is the last time residents in the vicinity of the Sunda Strait to see the sun was rising to its peak. Half an hour later, they dragged dying sea wave height to 40 feet ...! Total 36,417 people from 295 villages in the coastal region of Banten and Lampung. The next day and next day again, residents as far as to Jakarta and Lampung no longer see the sun - dark. What happened on that day like it is doomsday eruption of Mount Krakatau in the Sunda Strait. Eruptive sound heard so far 4600 miles and be heard in an area of 1 / 8 surface of the Earth. Much has been written and movies made around the world about the awesomeness of this eruption of Krakatoa. University of North Dakota Volcanic Explosivity Index (VEI) include two volcanic eruptions around the world who the greatest in modern history: 1883 Krakatau (VEI: 6) and Tambora in 1815 (VEI: 7).
Both exist in Indonesia, not far from us. May we, the Indonesian people - especially that calling itself the geologist, knew well these two volcanoes.