HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Full Text (PDF) Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (5) Citing Articles via Google Scholar Google Scholar Articles by Lee, K. Articles by Kim, J.-K. Search for Related Content GeoRef GeoRef Citation

Intensity Attenuation in the Sino-Korean Craton

School of Earth and Environmental Sciences
Seoul National University
Seoul 151-742, S. Korea

Intensity attenuation formulas are proposed for strong earthquakes of modified Mercalli intensity (MMI) VIII-X in the Sino-Korean craton. Isoseismals of 11 earthquakes that occurred in the craton during the twentieth century are used in the analysis. New attenuation formulas are expressed as

where I₀ and I are the epicentral intensity and intensity at an epicentral distance D; ₀ and are constants having some geometrical implications of the attenuation pattern; and D₀ is the reference value for the isoseismal I₀. Constants ₀ and have values of 1.31 and 1.77, respectively. Values of D₀ for I₀ = X, IX, and VIII are 9.3, 6.5, and 5.2, respectively. New attenuation relations fit the observations better than the conventional relations such as

It appears that the new formulas represent intensity attenuation of Korean earthquakes well to the limits of felt areas. New attenuation formulas using the relation between the total felt area and I₀ may be used in the estimation of epicentral intensities of strong Korean historical earthquakes for which only felt places are provided in documents without information on earthquake damages or phenomena. The formulas may also be used in more realistic evaluation of the seismic hazard of the Korean peninsula.

This article has been cited by other articles:

				C. Pasolini, P. Gasperini, D. Albarello, B. Lolli, and V. D'Amico The Attenuation of Seismic Intensity in Italy, Part I: Theoretical and Empirical Backgrounds Bulletin of the Seismological Society of America, April 1, 2008; 98(2): 682 - 691. [Abstract] [Full Text] [PDF]

				C. Pasolini, D. Albarello, P. Gasperini, V. D'Amico, and B. Lolli The Attenuation of Seismic Intensity in Italy, Part II: Modeling and Validation Bulletin of the Seismological Society of America, April 1, 2008; 98(2): 692 - 708. [Abstract] [Full Text] [PDF]

				K. Lee and W.-S. Yang Historical Seismicity of Korea Bulletin of the Seismological Society of America, June 1, 2006; 96(3): 846 - 855. [Abstract] [Full Text] [PDF]

				Earthquakes in Korea from 1905 to 1945 Bulletin of the Seismological Society of America, October 1, 2003; 93(5): 2131 - 2145.