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In response to ""Mercalli Intensity of IX" ... second time this week I've heard of that scale, hadn't heard of it before. I guess it's like the Shindo scale. -- nm" by Beryllium

it's an intensity scale. Richter is total energy released. there can actually be some pretty big discrepancy between them. the Japan and Christchurch

quakes were ages apart on Richter, but were both IX Mercali.

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