This mound of sand and gravel was created when sediment liquefied during the Murchison earthquake. The sand spurted out at the surface, creating a mini-volcano. Although such features formed by sand and mud often result from earthquakes, this appears to be a unique example where gravel boulders have been ejected, indicating the force of the eruption.
Te whakamahi i tēnei tūemi
Photograph by Noall Berryman
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