Tag Archives: Christchurch

Two more earthquakes shake Christchurch

Just as it seemed that seismic activity was finally dying down in Christchurch, the city has been shaken by two more earthquakes. The USGS currently has the first shock pegged as a magnitude 5.8, and the second as a magnitude … Continue reading

Categories: earthquakes, focal mechanisms, geohazards

Proof of earthquake triggering in Christchurch? Not so fast…

When a magnitude 6.3 earthquake scored an almost direct hit on Christchurch in February, I discussed the possibility that rather than being a simple aftershock of the Darfield earthquake last September, it was an example of the earlier quake triggering … Continue reading

Categories: earthquakes, tectonics

Update: Christchurch aftershocks

As the aftershocks of the Darfield quake continue, where do the future seismic dangers lie? Continue reading

Categories: earthquakes, geohazards, tectonics

More large aftershocks rattle Christchurch: will it ever end?

Analysis of the ongoing earthquake sequence. Continue reading

Categories: earthquakes, focal mechanisms, geohazards, tectonics

Aftershocks, triggered earthquakes, and Christchurch’s seismic future

As more scientific information becomes available regarding last week’s magnitude 6.3 earthquake in Christchurch, we can look a bit more closely at the nature of this earthquake, how it fits into the overall tectonic picture in New Zealand, and future … Continue reading

Categories: earthquakes, geohazards, society, tectonics