Kōrero: Historic earthquakes

Lateral spreading (2 o 2)

Lateral spreading

Lateral spreading – where the earth literally is pulled apart sideways – occurred in Kaiapoi during the Darfield earthquake, as seen in this parking area of a tavern near the Kaiapoi River. The concrete blocks in the wall at middle left have also separated due to lateral spreading and uneven ground settlement. Kaiapoi was one of the worst-hit areas. Buildings were damaged due to the severe ground shaking combined with the underlying geology of saturated fine sand and silt – which turned into a jelly-like consistency during the earthquake.

Te whakamahi i tēnei tūemi

GNS Science
Photograph by Nicola Litchfield

Permission of GNS Science must be obtained before any use of this image.

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Te tuhi tohutoro mō tēnei whārangi:

Eileen McSaveney, 'Historic earthquakes - The 2010 Canterbury (Darfield) earthquake', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/photograph/31158/lateral-spreading (accessed 13 July 2020)

He kōrero nā Eileen McSaveney, i tāngia i te 12 Jun 2006, reviewed & revised 28 Mar 2011, updated 1 Nov 2017