the intensityof a earthqualke ean be Calculaded エ= Io(b) Using I the intenisitly of earthquoke M: e of Cartliqiakě on Richter Scale magnilude Io= intensily of h carthquake with magn: tude of 0 explain why a earthquke with a magnitade of 9.5 is aperonimately u 40 himes' as intense as ď earth gooke with 40 times" as intense as a earth qooke tude of 6.9. エ= Io (10)

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