Thanks Brian; I changed some of the numbers in the address: looked from -42 to -45 lat and 171 to 174 long, and magnitude above 3, and then I zoomed in a bit more. There is a bit of a gap in the quakes of probably 5 or 10 km between the quakes in the west and Christchurch. The quakes are spread out; either not well located, or a bunch of faults were activated by the Sept quake.
Chris