Here, from USGS, is the list of shocks today in Christchurch,

Here is a list of the earthquakes located by the USGS and contributing networks for the 10-degree Map Centered at 45°S, 170°E. Most recent events are at the top. (Some early events may be obscured by later ones on the map.) Click on the date portion of an earthquake record in the list below for more information.

	MAG	UTC DATE-TIME y/m/d h:m:s	LAT deg	LON deg	DEPTH km	Region
MAP	4.1	2011/02/22 04:19:05	-43.600	172.750	15.0	SOUTH ISLAND OF NEW ZEALAND
MAP	4.4	2011/02/22 03:04:09	-43.570	172.650	12.0	SOUTH ISLAND OF NEW ZEALAND
MAP	5.5	2011/02/22 01:50:29	-43.588	172.734	9.6	SOUTH ISLAND OF NEW ZEALAND
MAP	5.6	2011/02/22 00:04:18	-43.580	172.798	6.7	SOUTH ISLAND OF NEW ZEALAND
MAP	6.3	2011/02/21 23:51:43	-43.600	172.710	5.0	SOUTH ISLAND OF NEW ZEALAND