A large magnitude 5 earthquake rocked the North Island at 11.15pm on 16 April. It was centred 10km west of Tokoroa at a depth of 150km.
|Universal Time||April 16 2011 at 11:15|
|NZ Standard Time||Saturday, April 16 2011 at 11:15 pm|
|Latitude, Longitude||38.26°S, 175.99°E|
|Focal Depth||190 km|
The quake was audible in Christchurch, where residents thought it was an aftershock following on from the 5.3 shake earlier the same day. See Rumble in Rolleston.