Clarence Fault

[4] At the surface the displacement on this continuous trace appears to be nearly pure horizontal, but continuous uplift of the neighbouring Inland Kaikōura Range over the same period, suggests that some of the dip-slip component thought to be present at depth on the fault zone is transferred onto thrust or reverse faults under the range.

[5] An extra 10° of clockwise rotation has been recognised within the block that lies northeast of the tip of the Clarence fault.

[7] Measurements from the southwestern part of the fault suggest 76–80 m of dextral displacement since the Late Pleistocene, about 18,000 years ago.

The timing of the most recent earthquake on the northeastern fault segment is poorly constrained, but is likely to be in the range 950–2000 years ago.

[4] The likelihood of a significant earthquake happening on the Clarence Fault in the next 50–100 years is regarded as moderate to possibly high, although poorly constrained by the available data.