Licuefacción

The video explains soil liquefaction, a process where solid soil behaves like a liquid during an earthquake. It occurs in moist sandy soils when water trapped between sand grains escapes due to ground shaking. This causes the soil to lose its structure and flow like mud, damaging infrastructure. The video also highlights the Kobe earthquake as an example and mentions ongoing engineering efforts to prevent such occurrences in the future.

What is the term used to describe the phenomenon where solid soil behaves like a liquid?

• Compaction

• Erosion

• Liquefaction

• Sedimentation

In which type of soil does liquefaction most commonly occur?

• Loamy

• Sandy

• Clay

• Rocky

What happens to the soil during an earthquake that leads to liquefaction?

• It dries out completely

• It becomes more solid

• It compacts and allows water to escape

• It expands and traps more water

What is a visible consequence of soil liquefaction on the surface?

• Drying up of water bodies

• Flooding of roads with mud

• Formation of new hills

• Creation of sinkholes

What are engineers working on to address the issue of soil liquefaction?

• Creating earthquake-resistant buildings

• Inventing new water drainage systems

• Developing new types of soil

• Developing techniques to prevent liquefaction