Research Article

Seismological and Hydrogeological Controls on New Zealand-Wide Groundwater Level Changes Induced by the 2016 Mw 7.8 Kaikōura Earthquake

Figure 2

Three examples of earthquake-induced groundwater level responses characterised and the spatial distribution of water level changes induced by the 2016 Mw 7.8 Kaikōura earthquake. (a) Persistent water level increase. (b) Persistent water level decrease. (c) Transient water level change. (d) Spatial distribution. Sampling intervals are 15 minutes (a, b) and 5 minutes (c). Responses in Cromwell Gorge are highlighted separately. The thick black line shows a transect approximately parallel to the long axis of the surface rupture zone; see Figure 8 for water level changes along this transect.
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