How does liquefaction occur and what dangers are associated with it?
Answers
Soil beneath us stays steady unless there is no force acting to it.
If there is a force, seismic waves, acts to soil near the surface, soil will start to shake and lose its rest position.
All kinds of soil have different durability.
Seismic waves try to destory soil's durability by shaking it.
When there is an underground water in around, soil durability decreases rapidly.
In a such moment that seismic waves destory the soil durability by the help of underground water, soil acts like an liquid. This situation is called liquefaction.
Answer:
, water-logged sediments at or near the ground surface lose their strength in response to strong ground shaking. Liquefaction occurring beneath buildings and other structures can cause major damage during earthquakes.