Following a few days of increased seismic activity, Christchurch experienced a 5.2 aftershock at 2:44pm on the 25 May 2012. It was centred in the sea between New Brighton and Sumner at a depth of 10 kilometres. The Mercalli scale registered it as VI meaning the following: Felt by everyone. Difficult to stand. Some heavy furniture moved, some plaster falls. Chimneys may be slightly damaged. Canterbury Quake Live
reported it as the 30th biggest shake since the 7.1 earthquake on the 4th September 2010. It was followed by a number of smaller shakes.
Residents felt it as a wobbling and shaking with houses creaking and rattling as the movement continued. Facebook comments included the following:
Had all the lights swaying here on the hills
The red zone of Christchurch was shut down soon after the quake as a safety measure.