Bolu-Ilgaz region was damaged by several large earthquakes in the last century and the
structural damage was substantial especially after the 1944 and 1999 earthquakes. The
objective of this study is to build the seismic source characterization model for the rupture
zone of 1944 Bolu-Gerede earthquake and perform probabilistic seismic hazard assessment
(PSHA) in the region. One of the major improvements over the previous PSHA practices
accomplished in this study is the development of advanced seismic source models in terms
of source geometry and reoccurrence relations. Geometry of the linear fault segments are
determined and incorporated with the help of available fault maps. Composite magnitude
distribution model is used to properly represent the characteristic behavior of NAF without an
additional background zone. Fault segments, rupture sources, rupture scenarios and fault
rupture models are determined using the WG-2003 terminology. The Turkey-Adjusted NGAW1
(Gü / lerce et al., 2013) prediction models are employed for the first time on NAF system.
The results of the study is presented in terms of hazard curves, deaggregation of the hazard
and uniform hazard spectrum for four main locations in the region to provide basis for
evaluation of the seismic design of special structures in the area. Hazard maps of the region
for rock site conditions and for the proposed site characterization model are provided to
allow the user perform site-specific hazard assessment for local site conditions and develop
site-specific design spectrum. The results of the study will be useful to manage the future
seismic hazard in the region.
| Identifer | oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/12615430/index.pdf |
| Date | 01 February 2013 |
| Creators | Levendoglu, Mert |
| Contributors | Gulerce, Zeynep |
| Publisher | METU |
| Source Sets | Middle East Technical Univ. |
| Language | English |
| Detected Language | English |
| Type | M.S. Thesis |
| Format | text/pdf |
| Rights | Access forbidden for 1 year |
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