A swarm of small quakes west of Christchurch may be good news for residents worried another big shake is on the way.
Earthquake scientists believe a recent series of earthquakes measuring up to 4.3 magnitude may show that Canterbury's most active current quake zone is breaking into small chunks.
Wow, how they come up with this stuff? It is obvious that the whole basin is an anomaly, and must be maintained by regular earthquake activity, just like the lowlands of Japan. They really need to start a new city, with everything on piles, and all services in hard tunnels.