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Line 1: − '''Magnitude''' is a numerical expression of the amount of [[energy]] released by an [[earthquake]], determined by measuring earthquake waves on standardized recording instruments ([[seismograph]]s). The number scale for magnitudes is logarithmic rather than arithmetic; therefore, deflections on a seismograph for a magnitude 5 earthquake, for example, are 10 times greater than those for a magnitude 4 earthquake, 100 times greater than for a magnitude 3 earthquake, and so on. (Foxworthy and Hill, 1982) <ref>[http://vulcan.wr.usgs.gov/Glossary/volcano_terminology.html Glossary of Volcano and Related Terminology]</ref>+ − − ==References== − <references/> − − [[category:geology]]
Replaced content with 'Page corrected by Anon, wild dugtrio appears'
Page corrected by Anon, wild dugtrio appears