Christchurch Canterbury and New Zealand Earthquakes.
Energy release by an earthquake in Joules is given by
P = 10 |
((magnitude * 1.5) + 4.8) |
Earthquake Magnitude that can be produced by a specific amount of energy in Joules
is given by
magnitude = |
(log10(P) - 4.8 ) |
|
|
1.5 |
M = 4.33 + 1.49 Log( L )
M = Magnitude on Richter scaleI = 1.41 Ms - 1.18 ln R - 0.0044 R + 2.18
I = Intensity of the Modified Mercalli scaleModified Mercalli scale to G force
A close fit for Modified Mercalli scale to G force can be achieved with
G = |
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+ |
I |
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100000 |
1000 |