The earthquake in Christchurch, NZ on the 22nd of February, 2011 was located just 4 or 5km underground. To put this in perspective, the quake in September, located near Christchurch was twice the depth, 10km below ground. So although the quake may have been 6.3 on the Richter scale, it was a lot shallower than the one in September (7.3 on the Richter Scale), did a lot more damage and took many, many more lives.
Hope this helps.
The Christchurch earthquake was a magnitude of 6.3
It's very possible that Christchurch could have another earthquake. However, the possibility is low, as Christchurch had no major earthquake before the earthquake in 2010.
There are excellent articles on both the Canterbury earthquake and the Christchurch earthquake in wikipedia.
the Christchurch cathedral
The Christchurch cathedral was toppled over and demolished from the earthquake on Feb 22, 2011. This earthquake did major destruction.
10km
The Christchurch earthquake was a magnitude of 6.3
It's very possible that Christchurch could have another earthquake. However, the possibility is low, as Christchurch had no major earthquake before the earthquake in 2010.
The date of the Christchurch Earthquake was September 4, 2010. The earthquake hit at 4:35am.
There are excellent articles on both the Canterbury earthquake and the Christchurch earthquake in wikipedia.
the Christchurch cathedral
the Christchurch cathedral
The Christchurch cathedral was toppled over and demolished from the earthquake on Feb 22, 2011. This earthquake did major destruction.
7.4
there was 6,000 people injured in the Feburary earthquake
In Darfied. Just outside of Christchurch
The Christchurch earthquake happened on February 22, 2011 at 12:51 NZDT