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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]]
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Is God willing to prevent evil, but not able? Then he is not omnipotent. Is he able, but not willing? Then he is malevolent. Is he both able and willing? Then whence cometh evil? Is he neither able nor willing? Then why call him God?