For some (many?) of you this won't be exciting. But for me it is. I was sitting in the math department and suddenly I felt funny and the building creaked like it was moving. So I checked http://www.christchurchquakemap.co.nz/today and sure enough, there was a 3.6 not too far away. I've been told that under 4 you are not likely to notice unless you are in certain parts of town, or at the top of a building and seated (like I am), etc. For example, looking at that site I see there have been several since I returned to Christchurch yesterday and this is the first one I noticed.
Anyway, I've never experienced any kind of earthquake (that anyone could notice) anywhere. People keep telling me they happen here all the time and now I can say I actually felt one.