▁from ▁the ▁mountain ▁sum mit ▁for ▁up ▁to ▁two ▁days . ▁Py ro cl astic ▁flows ▁spread ▁to ▁distances ▁of ▁about ▁ ▁from ▁the ▁sum mit ▁and ▁an ▁estimated ▁ 9 . 3 – 1 1 . 8 ▁× ▁ 1 0 1 3 ▁g ▁of ▁str atis pher ic ▁sul f ate ▁a eros ols ▁were ▁generated ▁by ▁the ▁er u ption . ▁ ▁After math ▁ ▁The ▁island ' s ▁entire ▁veget ation ▁was ▁destroyed ▁as ▁up root ed ▁trees , ▁mixed ▁with ▁p um ice ▁ash , ▁was hed ▁into ▁the ▁sea ▁and ▁formed ▁ra ft s ▁of ▁up ▁to ▁ ▁across . ▁One ▁p um ice ▁ra ft ▁was ▁found ▁in ▁the ▁Indian ▁Ocean , ▁near ▁Cal cut ta , ▁on ▁ 1 ▁and ▁ 3 ▁October ▁ 1 8 1 5 . ▁Cloud s ▁of ▁thick ▁ash ▁still ▁covered ▁the ▁sum mit ▁on ▁ 2 3 ▁April . ▁Ex pl os ions ▁ceased ▁on ▁ 1 5 ▁July , ▁although ▁smoke ▁em issions ▁were ▁still ▁observed ▁as ▁late ▁as ▁ 2 3 ▁August . ▁Fl ames ▁and ▁r umb ling ▁after sh ock s ▁were ▁reported ▁in ▁August ▁ 1 8 1 9 , ▁four ▁years ▁after ▁the ▁event . ▁ ▁A ▁moder ate ▁t sun ami ▁struck ▁the ▁sh ores ▁of ▁various ▁islands ▁in ▁the ▁Indones ian ▁arch ip el ago ▁on ▁ 1 0 ▁April , ▁with ▁waves ▁reaching ▁ ▁in ▁Sang gar ▁at ▁around ▁ 1 0   p . m . ▁A ▁t sun