We had a beautiful day sightseeing Banks Peninsula when another quake hit Christchurch: magnitude 5.8 at 1:58pm local time. This has been followed by numerous aftershocks, including a 6.0 at 3:18pm. The MQZ quake drum looked like this:

MQZ quake drum
MQZ quake drum, near Christchurch.

Tomorrow is another day (probably filled with aftershocks).