One of the side effects of the recent earthquakes in Christchurch (over 1,000 aftershocks, and at several dozen biggies) that all us Christchurch locals are becoming pseudo self appointed experts on earthquakes.

The problem is however that the more quakes we get, the more it’s apparent the Richter scale is just not cutting it.   The best example was the most recent biggie this morning, which resulted in more FaceBook posts than anything other than the main 7.1 on September 4, but yet only got a 5 on the Richter scale.  However as reported, there was quite some damage, and people got hurt, and it certainly had MAJOR shaking (walls moves 20-30cm) around Christchurch, and power went out.

Even the alternative scale that GeoNet offers (using the MMI scale) doesn’t really cut it for me, coz what I have noticed is, rather obviously, different people respond differently to the same quake, based on a whole range of factors (how far away they are from it, shallow quakes = more violent etc).  So for example, I know the big 7.1 quake didn’t do anything to my office, but a 4.1 knocked stuff of my desk and walls (coz it was so close), so it’s kinda messed up.

So, in an effort to help make the world a bit more black and white (the name of the game for this blog remember?) I have invented a new scale, and with it an all new table.


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