A photograph of a silt volcano. Silt volcanoes are caused by liquefaction, when the soil loses its strength during the earthquake and the silt rises upwards, ejecting out of a hole like magma in a volcano.
A photograph of cracks in pavement, with silt from liquefaction visible on the surface.
A photograph of silt from liquefaction and a cracked footpath near a drain on Gayhurst Road.
Broken pavement in the Halswell Primary School grounds. Silt from liquefaction can also be seen.
A photograph of sparrows bathing themselves in liquefaction silt.
A photograph of sparrows bathing themselves in liquefaction silt.
Liquefaction silt in a paddock.
Liquefaction silt in the Otukaikino Reserve.
Liquefaction silt in the Otukaikino Reserve.
Members of the Avonside Community walk down a road in Avonside. Silt from liquefaction has been cleared from people's properties and placed on the street in piles. Workers in the distance are collecting the silt to take to Bottle Lake.
Extensive damage caused by liquefaction in Bracken Street, Avonside. A pile of liquefaction can be seen in front of this house. After the earthquake, many people had to dig this silt out of their properties and place it on the road to be collected.
A photograph of a pile of silt from liquefaction in a garden and driveway.
A photograph of a pile of silt from liquefaction in a garden and driveway.
A photograph of liquefaction silt captioned by Paul Corliss, "Avonside and Retreat Roads post earthquake".
A photograph of liquefaction silt captioned by Paul Corliss, "Avonside and Retreat Roads post earthquake".
Footprints in liquefaction silt on the side of a residential street. The photographer comments, "Silt has accumulated everywhere".
Liquefaction silt and cracking in a paddock near Kaiapoi.
Liquefaction silt and flooding in a car park in Kaiapoi.
Liquefaction silt being cleared from Hilton Street, near the Kaiapoi Fire Station.
The fence of this house in Kaiapoi has sunk into the liquefaction silt.
The fence of this house in Kaiapoi has sunk into the liquefaction silt.
The fence of this house in Kaiapoi has sunk into the liquefaction silt.
A photograph of the earthquake damage to St Paul's School in Dallington. Large cracks can be seen in the surface of the asphalt. Silt from liquefaction is visible in front of the school buildings. Tape has been placed on the building to keep people away.
Large cracks in the playing field in Porrit Park are surrounded by "volcanoes" of liquefaction silt.
A large crack in the playing field in Porrit Park is surrounded by "volcanoes" of liquefaction silt.
A photograph of piles of silt on the side of a road in Christchurch. This has been dug out of people's properties and placed on the road to be picked up by the Council.
A typical "sand volcano" caused by liquefaction where the soil loses its strength during the earthquake and the silt rises upwards, ejecting out of a hole like magma in a volcano.
Liquefaction silt in the forecourt of the Challenge petrol station on the corner of Creswell Avenue and New Brighton Road.
A misaligned brick wall in front of a property with silt still piled up around it. During the earthquake, liquefaction drove silt to the surface where it erupted out of the ground like a volcano and formed a pile like the one seen here.
Sand volcanoes put the silt all over the road.