KRAKATOA VOLCANO

• date

  20 May - 21 October 1883
• deaths

  36,417 - 120,000
• impact

  20 million tonnes of sulphur was released
• type

  Plinian eruption
• peaked

  late morning on 27 August where 70% of the island was destroyed
• what type of plate boundary was Krakatoa?

  constructive
• effects of the eruption:

  • 37 metres high tsunami waves that killed over 10,000 people
  • cooled the earth down by 0.06°C that returned to normal in 1888
  • ash drifted around the globe causing halo effects around the sun and moon
  • all vegetation was destroyed
  • homes and structures were demolished
• causes of the eruption:

  • high pressure build up in tectonic plates
  • made a crack letting water enter and mix with magma