I know Canterbury has been done to death already, but as time goes on a better understanding can be had of whats actually happening.
I haven't seen any graphs like this on Geonet or Canterbury Quakes Live.
This time looking at 72 hours or 4 days. I've chosen that timeline because they seem to taper off after that and also 4 days graphs fits width wise in
As was recently advised the June 13th quake has been upgraded to 6.441, making it bigger than the February quake which caused all the damage and loss
However that alone does not make it the highest release of energy over the 72 hour timespan.
The Feb quake and 72 hrs of aftershocks still released the most energy, even more than the 7.1 and 72 hours of aftershocks
It looks like the two 5.8 and 5.9 aftershocks right after the 6.3 in Feb really made a big difference to the energy totals.
Also the graph shows the 7.1 as a slow lumbering giant of an aftershock series, whereas the Port Hils Feb and Taylors Mistake June aftershocks came in
rapidly within hours.
The Pegusus Bay 23rd Dec 6.0 is preliminary at this stage, it could be a month, if not 6-12 months before all the aftershocks are determined, but
there is no doubt whatsoever the numbers shown for that can be doubled .
Good for an overview anyway.
full size image here
Data is from Geonet
Co-ordinates of the search area
West 171.81584 South -43.93907
East 173.17656 North-42.96192
edit on 27-12-2011 by muzzy because: brain is faster than my fingers, spelling mistakes and punctuation