Geology: Volcanoes & Tsunamis

Question 1

What was the impact of the Krakatoa eruption (1883)?

Answer 1

• Loudest sound ever recorded on Earth.
• Created a huge tsunami, killing 36,000 people.
• Ash cloud lowered global temperature by 1°C.

Question 2

What happened during the Laki eruption (1783)?

Answer 2

• Spewed 600,000 Olympic pools of lava.
• Created a toxic fog over Europe.
• Contributed to the French Revolution (1789) due to crop failures.

Question 3

How do volcanoes cause tsunamis?

Answer 3

• Underwater eruptions displace water.
• Landslides into the ocean generate waves.