Powerful quake just it Japan.

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Maverick21

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sorry, the little mathematical/anal part of my brain feels the need to clarify a few things about earthquake strength. They are based on base 10 logs, but the richter numbers correspond to the amplitude of the earthquake "waves" So a 5.0 has an amplitude of 10x that of a 4.0 However, because of the way that amplitudes correspond to energy contained, a 5.0 will possess about 31.6x more energy than a 4.0

Also, and this is an interesting tidbit I picked up from wikipedia, but if you look at the richter numbers of earthquakes, and their relative frequency, there appears to be a log10 relationship in earthquake occurence. i.e. an earthquake of 4.x occurs about 10 times as often as an earthquake of 5.x

Okay, everyone please continue on


It's better than bad, it's good.
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This should sum it up ^
 

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