Earth quake hazards

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  • Created by: alicia8
  • Created on: 13-05-17 16:27
Ground Shaking (Primary)
vibration of the earth during an earthquake caused by seismic waves
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Ground Shaking (Primary) how's it formed?
When the plates suddenly slip P&S waves occur causing the ground to shake
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Ground Shaking (Primary) why's it a hazard?
Ground shaking can damage buildings particularly the foundations causing them to collapse
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Ground Shaking (Primary) - case study
Haiti - 8 minutes worth of ground shaking with 52 after shocks
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Landslides (primary)
movement of sediment down slopes often steep
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Landslides (primary) how's it formed?
vibrations from earthquake loosens rocks, if base becomes too loose the sediment above becomes unstable and slides. Especially occurs if sediments heavily saturated
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Landslides (primary) why's it a hazard?
Material moves with force covering buildings and trapping people inside
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Landslides (primary) - case study
Kumamoto, Japan 2016 - 40 people died
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Tsunami (secondary)
huge wave of water up to 200mph
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Tsunami (secondary) how's it formed?
Destructive plate margin. Oceanic subducts beneath continental. Friction builds between plates and as it subducts pulls continental down with ituntil pressures too high and continental flicks up
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Tsunami (secondary) why's it a hazard
Large wave,and fast up to 200mph can't out run destroy everything in path
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Tsunami (secondary) - case study
Japanese - killed 15,00 cost $300b
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Other cards in this set

Card 2

Front

Ground Shaking (Primary) how's it formed?

Back

When the plates suddenly slip P&S waves occur causing the ground to shake

Card 3

Front

Ground Shaking (Primary) why's it a hazard?

Back

Preview of the front of card 3

Card 4

Front

Ground Shaking (Primary) - case study

Back

Preview of the front of card 4

Card 5

Front

Landslides (primary)

Back

Preview of the front of card 5
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