[en] New probabilistic seismic hazard and Arias Intensity maps have been developed for the territory of the Kyrgyz Republic and bordering regions. Data were mainly taken from the seismic catalogue of Kyrgyzstan and partly from the world seismic catalogue. On the base of seismicity and active tectonics, seismic zones were outlined over the area. For these, Gutenberg-Richter laws were defined using mainly instrumental data, but regarding also historical events. Attenuation of acceleration inside the target area could not be determined experimentally since existing strong motion data are insufficient. Therefore, empirical laws defined for other territories, principally Europe and China, were applied to the present hazard computations. Final maps were calculated with the SEISRISKIII program according to EUROCODE8 criteria, i.e. for a period of 50 years with 90% probability of non-exceedance. For long-term prediction, 100 years maps with 90% probability of non-exceedance have been developed. The procedure used for seismic hazard prediction in terms of PGA (Peak Ground Acceleration) was also applied to Arias intensities in order to be able to define regional seismogenic landslide hazard maps.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Abdrakhmatov, K.
Havenith, Hans-Balder ; Université de Liège - ULiège > Département de géologie > Géologie de l'environnement
Delvaux, Delphine ; Centre Hospitalier Universitaire de Liège - CHU > HOSPITALISATION GERIATRIE (SI +3D)
Jongmans, D.
Trefois, P.
Language :
English
Title :
Probabilistic PGA and Arias Intensity maps of Kyrgyzstan (Central Asia)
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