Please use this identifier to cite or link to this item:
Authors: Akyol, N.* 
Akinci, A.* 
Eyidogan, H.* 
Title: Site amplification of S-waves in Bursa City and its vicinity, Northwestern Turkey: comparison of different approaches
Journal: Soil Dynamics and Earthquake Engineering 
Series/Report no.: /22 (2002)
Publisher: Elsevier
Issue Date: 2002
Keywords: site amplification, Bursa city, Turkey, ground motion
Northwestern Anatolian Fault, seismic hazard
Subject Classification04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneous 
Abstract: Microearthquake recordings of local events have been used to quantify the site effects in the vicinity of Bursa City, northwest Turkey. Since the city is located near the southwest branch of the western extension of the North Anatolian Fault (NAF) zone, the importance of the seismic hazard in the region becomes progressively more important. The accelerograms of 69 earthquakes that were recorded on different geologic units, massive limestone, slope deposit and Quaternary sediment were analyzed to estimate the response of the recording sites. Site amplification functions were obtained by using three different approaches (standard spectral ratio, SSR; horizontal to vertical, H/V ratio and generalized inversion method, GIM) and the differences between the methods were also evaluated. We found large discrepancies between the SSR and H/V ratio methods, specifically; the former yields almost three times higher amplitudes than those obtained in the latter approach. Station located within the Bursa Quaternary basin (SCKR) is characterized by the largest estimates of the amplification amplitudes (8.0, 4.5 and 4.0 for SSR, H/V ratio and GIM, respectively) in all the three methods. On the other hand, stations located on deep limestone geological unit (SIGD and SKAY) show the least amplification level, ranging between 1.0 and 1.6. Three methods are able to identify resonant frequencies of the sites, although the absolute amplitudes of the amplification function are obtained different from each method.
Appears in Collections:Article published / in press

Files in This Item:
File Description SizeFormat Existing users please Login
AKYOLETAL_SDEE2002.pdfarticle1.22 MBAdobe PDF
Show full item record

Page view(s)

checked on Mar 23, 2023


checked on Mar 23, 2023

Google ScholarTM