What is Krakatoa?
{{Infobox mountain | name = Krakatoa | photo = Krakatoa eruption lithograph.jpg | photo_caption = An 1888 [[lithograph]] of the 1883 eruption of Krakatoa. | map = Indonesia | map_caption = Location within Indonesia | location = [[Indonesia]] | map_relief = 1 | coordinates = {{coord|6.102|S|105.423|E|type:mountain_scale:100000|format=dms|display=inline,title}} | prominence_m = 813 | coordinates_ref =<ref>{{cite news|url=http://www.dailymail.co.uk/news/worldnews/article-1203028/Fiery-images-killer-volcano-claimed-36-000-lives-stirs-more.html|title=Will Krakatoa rock the world again?|publisher=Associated Newspapers Ltd|date=2009-07-31|accessdate=2010-01-23 | location=London | first=Marcus | last=Dunk}}</ref> | type = [[Caldera]] | age = | last_eruption = February 3, 2022 | first_ascent = | easiest_route = }} [[File:Map krakatau.gif|thumb|Map]] [[File:Krakatoa eruption 2008.jpg|thumb|2008 eruption]] '''Krakatoa''' ([[Indonesian language|Indonesian]] name: ''Krakatau'') is an [[active volcano]] in the [[Sunda Strait]], [[Indonesia]]. There are many different ways the name has been spelled. The [[volcano]] has [[Volcanic eruption|erupted]] repeatedly in known history. The best known of these events occurred in late August 1883. On 22 December 2018 the central cone collapsed and caused a [[tsunami]] in the Sunda Strait. More than 400 people were killed.<ref>Amos, Jonathan 2018. Anak Krakatau: Indonesian volcano's dramatic collapse. ''BBC News Science & Environment''. [https://www.bbc.co.uk/news/science-environment-46707731]</ref> == The 1883 eruption == The 1883 eruption ejected more than six cubic [[mile]]s (25 [[cubic kilometer]]s) of rock, [[Volcanic ash|ash]], and [[pumice]],<ref>{{cite web|url=http://teacher.scholastic.com/activities/wwatch/volcanoes/witnesses.htm|title=Scholastic.com - Online Activities: Weather Watch|website=teacher.scholastic.com}}</ref> and made the loudest sound ever [[recording|recorded]] by [[human]] beings. The sound was heard as far away as [[Perth, Western Australia|Perth]] in [[Aust