Anak Krakatoa Volcano Case Study

Question 1

Backgroung info:

Answer 1

• Located between the Sumatra and Java islands in the Indian Ocean.
• It lies in a destructive plate margin.
• It is a stratocolcano made of layers of erupted materials up to 338m in height.
• It has been active since 1883, when the last eruption occurred.
• In December 2018 there was a major eruption that triggered a tsunami.

Question 2

What were the social impact of the eruption?

Answer 2

• 36,000 people died.
• Caused temperatures to drop all over the world.
• The tsunami swept 165 coastal villages and settlements out to sea.
• A large amount of people were left homeless
• Because of the 25 km3 of rock and ash, locals had respiratory problems.

Question 3

What were the economic impacts of the eruption?

Answer 3

• The government will have to pay huge repairs to provide homes for the people that had theirs destroyed.
• Infrastructure was destroyed.
• Agricultural land and crops were destroyed.
• Flights were canceled which affected business.

Question 4

What were the environmental impacts of the eruption?

Answer 4

• 25 km3 of rock and ash were sent into the air and ocean, disturbing the ecosystems of the area.
• The volcano had a cooling effect on the ocean.
• Vegetation was destroyed by ash.
• Wildlife was severely affected and ecosystems were damaged.