A sand volcano in the Halswell Primary School grounds. Sand volcanoes were 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.
A "sand volcano" of liquefaction silt.
Photograph captioned by Fairfax, "Volunteers clearing out sand".
Photograph captioned by Fairfax, "Volunteers clearing out sand".
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.
Photograph captioned by Fairfax, "Kaiapoi volunteers clearing out sand".
Photograph captioned by Fairfax, "Sand volcanos on farmland near Halswell".
Photograph captioned by Fairfax, "Sand volcanos on farmland near Halswell".
A sand volcano in the Halswell Primary School grounds near the playground. Sand volcanoes were 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.
A photograph of the remains of a large sand volcano on a farm near River Road in Lincoln.
A photograph of the remains of a large sand volcano on a farm near River Road in Lincoln.
A photograph of a rotary hoe being used to remediate a large sand volcano on a farm near River Road in Lincoln.
A photograph of a rotary hoe being used to remediate a large sand volcano on a farm near River Road in Lincoln.
Photograph captioned by Fairfax, "Ground features. Sue Irvine's Halswell property was flooded by sand volcanoes and included bubbled-up areas of earth".
Water Tankers spraying the roads in Burwood to keep the sand and silt from entering the air and blowing around the neighbourhood.
A photograph of a large sand volcano on a farm near River Road in Lincoln being spread out with multiple power-harrow passes.
Photograph captioned by Fairfax, "Aftermath of Christchurch earthquake as residents start to clean up. 'Sand for sale!!' sign on a pile of liquefaction silt".
Photograph captioned by Fairfax, "Aftermath of Christchurch earthquake as residents start to clean up. 'Sand for sale!!' sign on a pile of liquefaction silt".
Photograph captioned by Fairfax, "Aftermath of Christchurch earthquake as residents start to clean up. 'Sand for sale!!' sign on a pile of liquefaction silt".
Photograph captioned by Fairfax, "Local resident Angela Mullin ponders her next move as a car sinks into sand disgorged from under the asphalt road in Flesher Avenue, Richmond".
A photograph of a dug-out soil pit on a farm near River Road in Lincoln, showing saturated sand between the topsoil and the subsoil where the grass roots end.
A photograph of a dug-out soil pit on a farm near River Road in Lincoln, showing saturated sand between the topsoil and the subsoil where the grass roots end.
A photograph of a dug-out soil pit on a farm near River Road in Lincoln, showing saturated sand between the topsoil and the subsoil where the grass roots end.
A photograph of a dug-out soil pit on a farm near River Road in Lincoln, showing saturated sand between the topsoil and the subsoil where the grass roots end.
A photograph of a dug-out soil pit on a farm near River Road in Lincoln, showing saturated sand between the topsoil and the subsoil where the grass roots end.
A photograph of a dug-out soil pit on a farm near River Road in Lincoln, showing saturated sand between the topsoil and the subsoil where the grass roots end.
A photograph of a dug-out soil pit on a farm near River Road in Lincoln, showing saturated sand between the topsoil and the subsoil where the grass roots end.
A photograph of a dug-out soil pit on a farm near River Road in Lincoln, showing saturated sand between the topsoil and the subsoil where the grass roots end.
A photograph of Professor Derrick Moot inspecting a dug-out soil pit on a farm near River Road in Lincoln. There is a thick layer of saturated sand between the topsoil and the subsoil where the grass roots end.
A photograph of Professor Derrick Moot inspecting a dug-out soil pit on a farm near River Road in Lincoln. There is a thick layer of saturated sand between the topsoil and the subsoil where the grass roots end.