secondary hazards of earthquakes p10 and 11

Question 1

soil liquifaction

Answer 1

takes place when an earthquakes vibrates place underground water under pressure.
the pressure forces water throuhj the soil particles, causing it to loss its usual structure and act like a liquid.

Question 2

landslides

Answer 2

landslides happen when rocks and soil are dislodged by the shaking of the ground.
- they can move down slopes very quickly.
- the shaking can also loosen ground material, making it easier for water to infiltrate.

Question 3

tsunamis

Answer 3

a series of large waves
- they usually occur at subduction zones.
- they can be triggered by submarine earthquakes.