Sand volcano of liquefaction silt outside McDonald Hartshorne on Manchester Street.
Photograph captioned by BeckerFraserPhotos, "Artwork by the Sand Dancer, New Brighton Beach".
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 volcanoes put the silt all over the road.
Photograph captioned by BeckerFraserPhotos, "Sand volcanoes in the Heathcote Estuary".
One of the many sand volcanos erupting from the ground after the Christchurch earthquake.
Laura and Max return to Christchurch from their holiday in California and inspect the earthquake-caused sand volcano in their front lawn.
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.
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.
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 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.
An entry from Deb Robertson's blog for 11 July 2013 entitled, "Do you ever feel like you are walking through deep sand?".
A photograph of a sign outside a property in Christchurch. The sign reads, "Thanks for helping our city". Sandcastles have been made out of liquefaction silt on the footpath in front of the sign.
In 2010 and 2011 a series of earthquakes hit the central region of Canterbury, New Zealand, triggering widespread and damaging liquefaction in the area of Christchurch. Liquefaction occurred in natural clean sand deposits, but also in silty (fines-containing) sand deposits of fluvial origin. Comprehensive research efforts have been subsequently undertaken to identify key factors that influenced liquefaction triggering and severity of its manifestation. This research aims at evaluating the effects of fines content, fabric and layered structure on the cyclic undrained response of silty soils from Christchurch using Direct Simple Shear (DSS) tests. This poster outlines preliminary calibration and verification DSS tests performed on a clean sand to ensure reliability of testing procedures before these are applied to Christchurch soils.
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".
Photograph captioned by BeckerFraserPhotos, "Liquefaction sand piled up in Chester Street West".
A volunteer shovelling sand on the site of Gap Filler's Community Chess Board in Sydenham.
A photograph captioned by Paul Corliss, "Settlers Crescent behind Sand Bar, after February 2011 earthquake".
A photograph captioned by Paul Corliss, "Settlers Crescent behind Sand Bar, after February 2011 earthquake".
A photograph captioned by Paul Corliss, "Settlers Crescent behind Sand Bar, after February 2011 earthquake".
Photograph captioned by BeckerFraserPhotos, "Showing the depth of the ejected sand during liquefaction - Armagh Street".
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.
Photograph captioned by BeckerFraserPhotos, "Liquefaction sand piled up in Chester Street West with household and street rubbish added".