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Recent submissions

Jeofizik: Recent submissions

Toplam kayıt 68, listelenen: 21-40

Investigating crustal structure of the Marmara region using local tomography and seismic anisotropy anisotropy methods

Polat, Gülten. (Thesis (Ph.D.)-Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2019., 2019.)

The crustal structure underneath the Marmara region was investigated by uti lizing local tomography and shear wave splitting methods in this study. These regions have high seismicity and are thus of serious importance to ...
Dynamic rupture process of the 1999 Düzce earthquake

Bekler, Feyza Nur. (Thesis (Ph.D.)-Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2018., 2018.)

Rupture process of large magnitude earthquakes have been generally performed by using a kinematic approach. A typical set of input parameters for kinematic approach includes; fault length, fault depth, rupture velocity, ...
Paleoseismological studies on Düzce fault and geological data on the seismogenic sources in the vicinity of Düzce area

Komut, Tolga. (Thesis (Ph.D.)- Bogazici University. Kandilli Observatory and Eartquake Research Institute, 2005., 2005.)

In 1999, two earthquakes ruptured the Northern Almaclk strand (NAIS) of the North Anatolian Fault that includes the Diizce and Aksu faults, producing surface rupture along the northern border of the Almaclk block. ...
Analysis of 15 December 2000 and 3 February 2002 Sultandağı - Afyon earthquakes

Aksarı, Doğan. (Thesis (M.S.) - Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2006., 2006.)

We analyzed two moderate size of earthquakes (Mw=6.0, Mw=6.5) occurred in Sultandağı-Afyon, southwestern Turkey on December 15, 2000 and February 3, 2002. Both earthquakes took place on the Sultandağı fault (SF) having ...
The crustal structure of the central anatolia using receiver function analysis

Yelkenci, Seda. (Thesis (M.S.) - Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2006., 2006.)

Central Anatolia has complicated crustal and upper mantle structure that is influenced by the thermal and geodynamic process related to motions of surrounding plates. Few studies of the crustal structure of Central Anatolia ...
High frequency ground motion scaling in eastern Turkey

Şemin, Korhan Umut. (Thesis (M.S.) - Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2006., 2006.)

A regional study of ground motion scaling parameters is presented for the region surrounding the eastern Turkey. The data set used in this study consists of 100 earthquake events from Eastern Turkey Seismic Experiment ...
Resolution of isotropic percentage in moment tensor inversion of tensile sources

Öter, Gökçe. (Thesis (M.S.)-Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2019., 2019.)

Moment tensor solutions are commonly used in order to understand earthquake source mechanism. Moment tensor can be decomposed into three components, namely isotropic (ISO), double-couple (DC) and compensated linear vector ...
3-D P-wave velocity structure beneath eastern Turkey applying local earthquake tomography (LET) method

Teoman, Uğur Mustafa. (Thesis (M.S.) - Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2005., 2005.)

Eastern Turkey is a seismically active region exhibiting a complex structure in terms of both tectonic and geologic· features. A temporary seismic network consisting of 29 broadband three-component broadband stations were ...
How does anisotropic focal region change the structure of the moment tensor?

Poyraz, Dilay. (Thesis (M.S.) - Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2021., 2021.)

In this study, we show how the invariants of the moment tensors change for different orientations of sources in a vertical transversely isotropic (TI) focal region. The invariants of the moment tensors, namely their norms, ...
The analysis of 2003 Saros earthquake sequence, North Eastern aegean region and a calibration study of surface wawe magnitude (Ms)

Mutlu, Ahu. (Thesis (M.S.)-Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2005., 2005.)

This study includes works on two different topics. In the first part, we analyzed the aftershock activity following Mw=5.8, 6th July 2003 Saros earthquake. The activity took place along the axis of the Saros gulf between ...
Probabilistic tsunami hazard analysis for Tuzla test site using Monte Carlo simulations

Bayraktar, Hafize Basak. (Thesis (M.S.)-Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2018., 2018.)

In this study, time-dependent probabilistic tsunami hazard analysis (PTHA) is performed for Tuzla in the Sea of Marmara, Turkey, related to the possible rupture of Prince Island Fault within next 50, 100, 500 and 1000 ...
The role of crustal fluids in tectonics of north-central Turkey inferred from three-dimensional magnetotellurics

Özaydın, Sinan. (Thesis (M.S.) - Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2011., 2017.)

Central Pontides have been an active margin to Laurasia since the Paleozoic times. They consists of geological footprints of several episodes of subduction-accretion events and collisional tectonics. For these reasons, ...
Investigation of electrical conductivity characteristics at the vicinty of Genos fault, northwest Turkey by magnetotellurics

Karaş, Mustafa. (Thesis (M.S.)-Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2017., 2017.)

As constituting the westernmost end of North Anatolian Fault, 45-km-long Ganos Fault acts as an active segment which represents a seismic gap. In this thesis, the ﬁrst systematic magnetotellurics observations are made to ...
Studying the finiteness of large earthquakes with higher order moments of the moment tensor

Örsvuran, Rıdvan. (Thesis (M.S.) - Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2016., 2016.)

Finite fault parameters of the large earthquakes can be obtained using kinematic finite fault models which consist of a collection of subfaults. Yet calculating each subfault individually costs time and the fault model ...
3-D crustal structure of the Simav - Küyahya and surrounding regions

Duran, Nuray. (Thesis (M.S.)-Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2017., 2017.)

Kütahya and surroundings are quite complex structures from a tectonic and geological perspective. On May 19, 2011, an earthquake of magnitude M = 5.9 occurred in Simav. The purpose of this thesis is determination of the ...
Search of optimal crustal velocities using waveform modelling of local earthquakes

Bekler, Feyza Nur. (Thesis (M.S.) - Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2005., 2004.)

One of the concerns of geophysicist during the last decade is to reduce the damage of earthquakes. As a result, seismic hazard studies have become an integral part of long term planning and mitigation. One approach is to ...
Variations of source parameters due to anisotropic focal region

Ertuncay, Deniz. (Thesis (M.S.) - Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2016., 2016.)

Seismic sources in anisotropic medium have more complex moment tensor structures compared with the moment tensors of isotropic medium. Shear sources in an isotropic focal medium generate pure double-couple (DC) moment ...
Numerical modeling of exhumation of high pressure - low temperature metamorphic rocks: a case study of Tavsanlı and Afyon zone in western Anatolia

Bodur, Ömer Faruk. (Thesis (M.S.) - Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2016., 2016.)

Despite many numerical modeling works on burial and exhumation of crustal rocks, the formation of metamorphic rocks in High Pressure / Low Temperature (HP/LT) region and mechanism of their exhumation are poorly constrained. ...
The magnetotlluric phase tensor method for imaging the north Anatolian fault zone

Bekin, Ekrem. (Thesis (M.S.) - Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2016., 2016.)

Magnetotelluric data often suffer from localized (three-dimensional) heterogeneities by a real and frequency independent phenomenon known as “galvanic distortions”. There have been numerous techniques developed for avoiding ...
Determination of earthquake source parameters for the Elazığ earthquake of March 8, 2010 based on source spectra

Yılmaz, Tülay. (Thesis (M.S.) - Bogazici University. Kandilli Observatory and Earthquake Research Institute, 2014., 2014.)

Elazığ province was experienced a moment magnitude of 6.0 (Mw=6.0) earthquake on March 8th, 2010 which was followed by a sequence of earthquakes ranging from moderate to large scale near the source of main shock, ...

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