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Flashcards in Tsunamis Deck (8)
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1

When was the tsunami? (Tsunami tectonics)

26th December 2006

2

Where was the earthquake felt and what size was it? (Tsunami tectonics)

Sumatra, 8.9-9.3

3

Where did the earthquake occur? (Tsunami tectonics)

On two destructive plate boundaries - the Burmese plate subducted under the Indian plate

4

What was the velocity? (Tsunami tectonics)

over 500 km per hour

5

When the two plates snag, what is this known as? (Tsunami tectonics)

Stick slip motion

6

What happens when two plates snag? (Tsunami tectonics)

Water columns are displaced upwards, beginning the wave motion

7

What happens to the wave when it reaches the continental shelf? (Tsunami tectonics)

Increased friction causes the wave to level in an elliptic motion, creating a wall of water

8

What areas were affected by this tsunami? (Tsunami tectonics)

- India
- Sri Lanka
- Thailand
- Maldives