A short and sharp earthquake has jolted Christchurch.
Geonet said the magnitude 3.1 shake, at 3.25pm, struck 10 kilometres deep, in the Port Hills above Cashmere.
More than 700 people reported to Geonet they felt it.
Geonet described the intensity as "light". People said on Twitter it was "sharp" and "a real rattler".
Wow, that was a big jolt #eqnz— t.co.nz (@TimothyNewman) January 29, 2017
Sharp in Sumner #eqnz— Richard Loffhagen (@catering_4_chch) January 29, 2017
That was a small, shaky quake. #eqnz.— David Besley (@DaveBesley) January 29, 2017