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.
Sand volcano of liquefaction silt outside McDonald Hartshorne on Manchester Street.
Photograph captioned by BeckerFraserPhotos, "Sand volcanoes in the Heathcote Estuary".
Sand volcanoes" in the Heathcote Estuary. The volcanoes were caused by liquefaction, where the soil lost its strength and water erupted out of the hole, taking silt with it.
Sand volcanoes" in the Heathcote Estuary. The volcanoes were caused by liquefaction, where the soil lost its strength and water erupted out of the hole, taking silt with it.
Sand volcanoes" in the Heathcote Estuary. The volcanoes were caused by liquefaction, where the soil lost its strength and water erupted out of the hole, taking silt with it.
Sand volcanoes" in the Heathcote Estuary. The volcanoes were caused by liquefaction, where the soil lost its strength and water erupted out of the hole, taking silt with it.
A "sand volcano" in the Heathcote Estuary. The volcano was caused by liquefaction, where the soil lost its strength and water erupted out of the hole, taking silt with it.
Sand volcanoes" in the Heathcote Estuary. The volcanoes were caused by liquefaction, where the soil lost its strength and water erupted out of the hole, taking silt with it.
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.
Paradise ducks search for food among 'sand volcanoes' in the Heathcote Estuary. The volcanoes were caused by liquefaction where the soil lost its strength and water erupted out of the hole, taking silt with it.
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.
Photograph captioned by BeckerFraserPhotos, "Sand volcano in 25 Seabreeze Close, Bexley".
Students from the University of Canterbury marine research unit taking samples of the seabed to test the effects of the liquefaction on marine life.
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 captioned by BeckerFraserPhotos, "A sand volcano outside the window of the home at 22 Seabreeze Close, Bexley".
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.
A photograph of a large sand volcano on a farm near River Road in Lincoln being spread out with multiple power-harrow passes.
A 'sand volcano' of liquefaction in a crack in a gravel driveway beside a house in Richmond. The photographer comments, "Liquefaction in back yard".
A photograph captioned by BeckerFraserPhotos, "The estuary situated behind Seabreeze Close in Bexley. The estuary shows signs of liquefaction with a large number of sand volcanoes appearing".
A photograph captioned by BeckerFraserPhotos, "A view of the estuary which is just behind Seabreeze Close, Bexley. The estuary shows signs of liquefaction with a large number of sand volcanoes appearing".
A video of a tractor on a farm near River Road in Lincoln. The tractor is making a several passes over a sand volcano with a rotary hoe. This was one of several soil-remediation techniques tested on farms affected by the 4 September 2010 earthquake.
A video of a tractor on a farm near River Road in Lincoln. The tractor is passing over a large sand volcano with a power harrow. This was one of several soil-remediation techniques tested on farms affected by the 4 September 2010 earthquake.