Why does liquefaction occur after an earthquake?
Why does soil liquefaction happen?
How do earthquakes cause soil liquefaction?
What conditions are necessary for liquefaction?
- Loose, granular soil – typically artificial fill (landfill) and beach or stream deposits that are loosely compacted.
- Saturation of the soil by ground water (water fills the spaces between the soil particles).
- Strong shaking.
Where does liquefaction usually occur?
What is liquefaction process?
What damage did liquefaction cause?
The overlying ground can also sink, spread and break. Underground pipes and tanks float and break. Power poles fall and break cables. During the 2010 and 2011 Canterbury earthquakes, over 400 000 tonnes of silt came to the surface, covering streets and gardens in several suburbs.