I searched about New Zealand's earthquakes, but difference between Japan and New Zealand was difficult to search. So I'll introduce some sites;-)
First, this site is wrote about PLATE. You know, earthquakes happened because of it. So it's useful for someone who searching geography too.
Second, it's FAQ about earthquakes. So this page makes us to find the answer that we wanted easily.
Finaly, I recommend you to this site. I think it's the best of here's three site because please check this site's bottom. There are history of earthquake, causes of earthquake and so on. Moreover please check left side. There are some links of nature, sightseeing, seabirds and so on. So it's very useful site I think.
If you could use this three site, please make good use of your serching.
