The Greendale Fault is an active seismic fault situated in the Canterbury Plains in New Zealand's South Island.

The fault was previously unknown to geologists until 4 September 2010, as physical traces of the fault had been buried by gravel (alluvial deposits) during the last glaciation period.

[2] A powerful 7.1 magnitude earthquake,[3][4] occurred on the Greendale Fault at 4:35 am on 4 September 2010 local time (16:35 3 September UTC).

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