Seismic hazard assessment for the North Anatolian and San Andreas faults based on random field models

The North Anatolian fault (NAF), located in northern Turkey and California's San Andreas fault (SAF) show remarkable similarities. A random field model, developed by the authors (Akkaya & Yucemen 1996) is utilized to compare the seismicity characteristics of the two faults on a statistical basis. The seismic hazard model is based on the level-crossing theory of random fields and considers the space-time correlations simultaneously and explicitly through the use of spatial and temporal scales of fluctuation. The comparison between the two faults is carried out with respect to the level of seismic hazard and the space-time correlation structure. In this comparison, the most active portions of the NAF and the SAF are considered.


Seismic Protection of Museum Collections: Lessons Learned After the 1999 Earthquakes in Turkey
Ertürk, Nevra (Middle East Technical University, Faculty of Architecture, 2012-6-1)
Turkey has a long history of large earthquakes in three major fault zones that place two-thirds of the country. Following the two major earthquakes that struck the nortwestern part of Turkey in 1999, several attempts have been taken at hospitals, schools or administrative buildings. The two earthquakes prompted museum professionals and policymakers to consider measures to protect museum collections as well as buildings against earthquake. After the 1999 earthquakes, various projects, scientific researches, ...
Seismic hazard in the Istanbul Metropolitan Area: A preliminary re-evaluation
Kalkan, E.; Gulkan, P.; Ozturk, N. Yilmaz; Celebi, M. (2008-01-01)
In 1999, two destructive earthquakes (M7.4 Kocaeli and M7.2 Duzce) occurred in the north west of Turkey and resulted in major stress-drops on the western segment of the North Anatolian Fault system where it continues under the Marmara Sea. These undersea fault segments were recently explored using bathymetric and reflection surveys. These recent findings helped to reshape the seismotectonic environment of the Marmara basin, which is a perplexing tectonic domain. Based on collected new information, seismic h...
Evaluation of alluvial deposits in Gemlik basin in terms of earthquake codes.
Avşar, Ulaş; Doyuran, Vedat; Department of Geological Engineering (2006)
Gemlik County is located in the Marmara Region (NW Turkey), which has been affected by destructive earthquakes sourced from North Anatolian Fault System throughout its history. The bulk of the settlement rests on alluvial deposits of the Gemlik pull-apart basin. So, it is vital to investigate the foundation soils in this basin and the response of them to earthquakes. Many earthquake codes were established by the authorities in different countries of the world to estimate the possible ground shaking and seis...
Preliminary results from the North Anatolian Fault Passive Seismic Experiment Seismicity and anisotropy
Biryol, C. Berk; Özacar, Atilla Arda; Beck, Susan L.; Zandt, George (2006-12-11)
The North Anatolian Fault (NAF) is one of the world's largest continental strike-slip faults. Despite much geological work at the surface, the deep structure of the NAF is relatively unknown. The North Anatolian Fault Passive Seismic Experiment is mainly focused on the lithospheric structure of this newly coalescing continental transform plate boundary. In the summer of 2005, we deployed 5 broadband seismic stations near the fault to gain more insight on the background seismicity, and in June 2006 we deploy...
Analysis of sunshine duration between 1970 and 2010 for Turkey
Yıldırım, Uğur; Akınoğlu, Bülent Gültekin; Yılmaz, İsmail Ömer; Department of Earth System Science (2013)
In this thesis, 41 years of bright sunshine duration (SD) data of 192 meteorological stations in Turkey were analyzed. The main objective is to determine the trends of SD data and the importance of such analyses is the high correlation between SD data and solar irradiation reaching the surface of the earth. Because of the missing value problems, only the data set for 72 stations were examined. After imputing missing values of these stations by expectation maximization algorithm, to test the homogeneity Krus...
Citation Formats
A. Akkaya and M. S. Yücemen, “Seismic hazard assessment for the North Anatolian and San Andreas faults based on random field models,” 1999, Accessed: 00, 2020. [Online]. Available: