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http://dx.doi.org/10.7582/GGE.2011.14.3.254

Estimation of Earthquake Magnitude Using High-Frequency Energy Radiation Duration: Application to Regional Earthquakes  

Yun, Won-Young (National Institute of Meteorological Research, Korea Meteorological Administration)
Park, Sun-Cheon (National Institute of Meteorological Research, Korea Meteorological Administration)
Jeon, Young-Soo (National Institute of Meteorological Research, Korea Meteorological Administration)
Publication Information
Geophysics and Geophysical Exploration / v.14, no.3, 2011 , pp. 254-260 More about this Journal
Abstract
We studied magnitude determination method using high-frequency energy radiation duration to calculate rapidly magnitude of large earthquakes that occurred around Japan. Fourteen earthquakes were analyzed using Korea Meteorological Administration (KMA) data. We calculated duration of high-frequency energy radiation with 2~4 Hz band pass filter at each data and estimated magnitude. As a result, duration becomes longer as magnitude becomes larger and the magnitude estimated using regional earthquake data are similar to that using teleseismic data. Therefore when an earthquake occurs around Japan we will be able to estimate the magnitude in a relatively short time using KMA data and it may be possible to determine if the earthquake is large enough to produce tsunami.
Keywords
large earthquake; high-frequency energy radiation duration; tsunami; regional earthquake;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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