A photograph of liquefaction volcanos in a garden.
A photograph of liquefaction volcanos in a garden.
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 "sand volcano" of liquefaction silt.
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.
A photograph of a liquefaction volcano in a garden. A pen has been placed on the mound as a size reference.
A photograph of a liquefaction volcano in a garden. A pen has been placed on the mound as a size reference.
A photograph of a liquefaction volcano in a garden. A pen has been placed on the mound as a size reference.
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This has made a huge mess for the residents to clean up. I heard on the news that homes have been damaged by subsidence in areas of earthquake-caused liquefaction like this.
This one was really flowing out of the ground.
Robbie watches a sand volcano smother his driveway.
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Debra points at the beginnings of a sand volcano not long after the big earthquake.
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.
Laura, Nicola, and Debra watch a sand volcano build in the Wyn Street gutter.
(I righted the bird bath after the initial earthquake. None of the after-shocks were sufficient to knock it over again.)
Large cracks in the playing field in Porrit Park are surrounded by "volcanoes" of liquefaction silt.
