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http://dx.doi.org/10.5467/JKESS.2015.36.7.643

Analysis on the Relationship between Intensity and Magnitude for Historical Earthquakes in the Korean Peninsula  

Kim, Hyeon-hwa (Department of Earth Science Education, Korea National University of Education)
Kyung, Jai Bok (Department of Earth Science Education, Korea National University of Education)
Publication Information
Journal of the Korean earth science society / v.36, no.7, 2015 , pp. 643-648 More about this Journal
Abstract
Equations that could estimate the local magnitude of historical earthquakes, being difficult to calculate, in Sino-Korea craton was obtained using instrumental earthquake data for 22 Korean and 46 northeastern Chinese events. The obtained equations from intensity $I_0$ is $M_L=1.7+0.57{\times}I_0$. The equation from felt area FA for the Korean Peninsula is $M_L=4.29-1.34{\times}log(FA)+0.28{\times}log^2(FA)$. When the information on earthquake damage, effects, and felt area is all recorded at the same time, the former equation of intensity is more feasible than that of felt area due to uncertainty in earthquake felt area.
Keywords
local magnitude; intensity; felt area; Korean Peninsula; historical earthquake;
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