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Dependence of strong ground motion on magnitude-distance, site geology and macroseismic intensity for shallow earthquakes in Greece: II, horizontal pseudovelocity
AbstractBased on 105 horizontal components of pseudovelocity spectra from 36 earthquakes in Greece with surface wave magnitude 4·5 ⩽ Ms ⩽7· 0 and 16 components from four earthquakes in Japan and Alaska with magnitude 7·0 < M ⩽ 7·5 (M : MJMA, MW), the attenuation of pseudovelocity spectral values in terms of earthquake magnitude, epicentral distance and geologic site conditions is examined. In addition, 70 horizontal components of pseudovelocity spectra, from shallow earthquakes in Greece, are correlated with modified Mercalli intensity and geologic conditions at the recording sites. Coefficients determined through regression analyses of pseudovelocity spectra for 13 periods and five damping values offer a means of direct scaling of spectral values. This can lead to more complete and reliable sampling of the frequency-dependent characteristics of strong ground motion in Greece than the correlations of peak amplitudes alone.
Dependence of strong ground motion on magnitude-distance, site geology and macroseismic intensity for shallow earthquakes in Greece: II, horizontal pseudovelocity
AbstractBased on 105 horizontal components of pseudovelocity spectra from 36 earthquakes in Greece with surface wave magnitude 4·5 ⩽ Ms ⩽7· 0 and 16 components from four earthquakes in Japan and Alaska with magnitude 7·0 < M ⩽ 7·5 (M : MJMA, MW), the attenuation of pseudovelocity spectral values in terms of earthquake magnitude, epicentral distance and geologic site conditions is examined. In addition, 70 horizontal components of pseudovelocity spectra, from shallow earthquakes in Greece, are correlated with modified Mercalli intensity and geologic conditions at the recording sites. Coefficients determined through regression analyses of pseudovelocity spectra for 13 periods and five damping values offer a means of direct scaling of spectral values. This can lead to more complete and reliable sampling of the frequency-dependent characteristics of strong ground motion in Greece than the correlations of peak amplitudes alone.
Dependence of strong ground motion on magnitude-distance, site geology and macroseismic intensity for shallow earthquakes in Greece: II, horizontal pseudovelocity
Theodulidis, N.P. (author) / Papazachos, B.C. (author)
Soil Dynamics and Earthquake Engineering ; 13 ; 317-343
1994-03-25
27 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 1994
Ground motion attenuation relations for shallow earthquakes in Greece
| British Library Conference Proceedings | 2002