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Krakatau Facts Volcanic Island in Indonesia Between Java and Sumatra

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Presentation on theme: "Krakatau Facts Volcanic Island in Indonesia Between Java and Sumatra"— Presentation transcript:

1 Krakatau Facts Volcanic Island in Indonesia Between Java and Sumatra
About 7 km across Rising 800 meters above sea level Long active volcano Eruptions over several days 10 a.m., August 26, 1883: Explosion Explosion = 150 megatons of dynamite Heard 3600 km away in SE Australia 4 km3 of ash shot 30 km high

2 Remnant Island Survived
Rakata remained above sea level Covered in 40 meters of ash Temperatures at eruption 300o C to 850o C No life observed

3 The Damage Krakatau and nearby islands sank
Tidal waves over 36 meters high Destroyed 295 towns on Java and Sumatra Killed over 35,000 people Ash cloud affected world climate

4 A Century Later: 1984-85 Thick green rain forest No pythons seen
30 species of birds, 9 species of bats Several species of rats and reptiles Over 300 species of small animals Life Covers a New Geography

5 Life Returns to Rakata Return of life studied by scientists
Spring 1884: A tiny spider Fall 1884: A few shoots of grass 1886: 15 species of grass and shrubs 1889: Large lizard eating crabs on coast 1897: 49 species of grass and shrubs

6 Decades Later 1919: A large python; patches of forest
1928: Almost 300 species of grasses 1929: Several pythons seen; forests covered island

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