NDLI: A site effect study of the Adapazari basin, Turkey, from strong- and weak-motion data

Please wait, while we are loading the content...

The earthquake of 6 September 2002 and the seismic history of Palermo (Northern Sicily, Italy): Implications for the seismic hazard assessment of the city

S-wave velocity structures of sediments estimated from array microtremor records and site responses in the near-fault region of the 1999 Chi-Chi, Taiwan earthquake

A site effect study of the Adapazari basin, Turkey, from strong- and weak-motion data

Index to Volume 8 (2004)

Contents of Volume 8 (2004)

Journal of Seismology : Volume 8, Issue 3, July 2004

Journal of Seismology : Volume 8, Issue 2, April 2004

Journal of Seismology : Volume 8, Issue 1, January 2004

Journal of Seismology : Volume 7

Journal of Seismology : Volume 6

Journal of Seismology : Volume 5

Journal of Seismology : Volume 4

Journal of Seismology : Volume 3

Journal of Seismology : Volume 2

Journal of Seismology : Volume 1

A site effect study of the Adapazari basin, Turkey, from strong- and weak-motion data

Content Provider	Springer Nature Link
Author	Oguz, Ozel Sasatani, Tsutomu
Copyright Year	2004
Abstract	Approximately 4000 people were killed due to collapse of buildings in downtown Adapazari during the 1999 Izmit, Turkey earthquake (Mw = 7.4). The downtown is located on a deep sedimentary basin, so-called Adapazari basin. We study site effects of the Adapazari basin based on strong- and weak-motion data obtained by a temporary array observation deployed in and around the Adapazari basin after the earthquake. Four moderate-size aftershocks (M4.6–M5.8) are selected in our study. We evaluate the S-wave amplifications in the basin by using the traditional spectral ratio method. The spectral ratios show that the S waves are considerably amplified in the frequency range of 0.5 to about 5 Hz at the basin sites, but are apparently de-amplified at frequencies higher than about 10 Hz. We make a quantitative interpretation of the empirical amplifications based on the S-wave velocity structures at the stiff-soil reference site as well as at the basin sites; these structures were estimated by the microtremor array measurements. Through the interpretation, we confirm that the amplifications at low frequencies are attributed to the thick sedimentary layers in the Adapazari basin and that the apparent de-amplifications at high frequencies are partly due to the reference site response. In addition to the considerable S-wave amplifications, the basin site records show long-period (about 2 sec) later phases after the S-wave arrival; these later phases are basin-transduced surface waves that are originated from the source and transmitted into the basin. The predominant period of these waves apparently depends on the earthquake magnitude. We conclude that heavy damage in downtown Adapazari during the 1999 Izmit earthquake was caused not only by strongly amplified S-waves but also by long-period basin surface waves of long duration.
Starting Page	559
Ending Page	572
Page Count	14
File Format	PDF
ISSN	13834649
Journal	Journal of Seismology
Volume Number	8
Issue Number	4
e-ISSN	1573157X
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2004-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Adapazari basin basin surface waves Izmit (Kocaeli) earthquake site effects spectral ratio Structural Geology Geophysics/Geodesy Hydrogeology Geotechnical Engineering
Content Type	Text
Resource Type	Article
Subject	Geochemistry and Petrology Geophysics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

A study of residuals for strong ground motions in Adapazari basin, NW Turkey, by ground motion prediction equations (GMPEs)

Monitoring of fault healing after the 1999 Kocaeli, Turkey, earthquake

Analysis and interpretation of the aftershock sequence of the August 17, 1999, Izmit (Turkey) earthquake

3D basin-shape ratio effects on frequency content and spectral amplitudes of basin-generated surface waves and associated spatial ground motion amplification and differential ground motion

Site effects of the Roio basin, L’Aquila

Estimation of site effects using strong motion data of BYTNet array in Turkey

Attenuation characteristics of peak ground acceleration from fault trace of the 1999 Kocaeli (Turkey) earthquake and comparison of spectral acceleration with seismic design code

The earthquake of 10 July 1894 in the Gulf of Izmit (Turkey) and its relation to the earthquake of 17 August 1999

Engineering characteristics of the near-field strong motions from the 1999 Kocaeli and Düzce Earthquakes in Turkey

A site effect study of the Adapazari basin, Turkey, from strong- and weak-motion data

Similar Documents

A study of residuals for strong ground motions in Adapazari basin, NW Turkey, by ground motion prediction equations (GMPEs)

Monitoring of fault healing after the 1999 Kocaeli, Turkey, earthquake

Analysis and interpretation of the aftershock sequence of the August 17, 1999, Izmit (Turkey) earthquake

3D basin-shape ratio effects on frequency content and spectral amplitudes of basin-generated surface waves and associated spatial ground motion amplification and differential ground motion

Site effects of the Roio basin, L’Aquila

Estimation of site effects using strong motion data of BYTNet array in Turkey

Attenuation characteristics of peak ground acceleration from fault trace of the 1999 Kocaeli (Turkey) earthquake and comparison of spectral acceleration with seismic design code

The earthquake of 10 July 1894 in the Gulf of Izmit (Turkey) and its relation to the earthquake of 17 August 1999

Engineering characteristics of the near-field strong motions from the 1999 Kocaeli and Düzce Earthquakes in Turkey

A site effect study of the Adapazari basin, Turkey, from strong- and weak-motion data