A5036240038- earthquake and tectonic studies
- Earthquake Detection and Analysis
- High-pressure geophysics and materials
- Seismology and Earthquake Studies
- Geological and Geophysical Studies
- Geological and Geochemical Analysis
- Seismic Imaging and Inversion Techniques
- Geochemistry and Geologic Mapping
- Landslides and related hazards
- Seismic Waves and Analysis
- Geophysics and Gravity Measurements
- Drilling and Well Engineering
- Marine and environmental studies
- Earthquake and Tsunami Effects
- Engineering Structural Analysis Methods
- Geology and Paleoclimatology Research
- Methane Hydrates and Related Phenomena
- Remote-Sensing Image Classification
- Geophysics and Sensor Technology
- Geophysical and Geoelectrical Methods
- Ottoman and Turkish Studies
- Forecasting Techniques and Applications
- Hydraulic Fracturing and Reservoir Analysis
- Geological Studies and Exploration
- Economic and Technological Developments in Russia
Iğdır Üniversitesi
2023-2024
Sakarya University
2022
Sakarya Eğitim ve Araştırma Hastanesi
2022
University of Edinburgh
2021
University of Ulster
2005-2016
Scientific and Technological Research Council of Turkey
2014
Indonesian Institute of Sciences
2010
Istanbul University
1995-2002
We have investigated the Coulomb stress interactions of 29 earthquakes (M s ≥6.0) that occurred in region northwest Turkey and north Aegean Sea since 1912. Of these events, 23 may be related to earlier 16 are clearly events. All events after 1967 previous Events early part our time interval show no correlation could historical as yet unidentified. In some cases, faults received a reduction from prepared for an event by earthquake occurring few years before creates local rise. Thus regions...
The apparent strong correlation between Coulomb stress changes and the spatial distribution of aftershocks suggests possibility making near‐real‐time estimations areas at risk experiencing off‐fault aftershocks. In order to do this in practice a number issues must first be addressed, including extent which main shock slip known detail before meaningful map can constructed. Here we investigate issue by constructing time‐ordered sequence solutions for Landers earthquake, computing each...
Geodetic measurements following the 23 October 2011, Mw = 7.2 Van (eastern Turkey) earthquake reveal that a fault splay on footwall block of coseismic thrust was reactivated and slipped aseismically for more than 1.5 years earthquake. Although long-lasting aseismic slip ruptures has been documented many large earthquakes, long-lasting, triggered neighboring faults did not rupture during reported previously. Elastic dislocation Coulomb stress modeling indicate postseismic deformation can be...
Calculations of static stress changes due to large earthquakes have shown that the spatial distribution aftershocks is predictable first order, with primarily occurring in areas experiencing positive changes. Delineation these relies on resolving perturbation onto planes known orientations; common practice use poorly constrained regional information compute optimally oriented failure planes, assuming they exist everywhere. Here we show this assumption not supported by observation but rather...
The 1999 November 12 Düzce earthquake (Mw= 7.1) was apparently the eastward extension of August 17, İzmit 7.4). event caused heavy damage and fatalities in cities Bolu. Here a finite-fault inversion method with five discrete time windows is applied to derive co-seismic slip distribution earthquake. fault plane best modelled as 40 × 20 km2 plane, strike 262° dip 65° north, that majority occurred two distinct patches on either side hypocentre, implying bilateral rupture. possible triggering...
At 00:02 GMT (03:02 local time) on 17 August, 1999 a magnitude 7.4 (Ms) earthquake occurred 100 km east of Istanbul causing extensive destruction. The event was expected and several scientists have published attempted to publicize the danger. A paper stress interactions for NW Turkey (J. Geophys. Res. 103 (1998) 24466–24469) concluded that "by combining change map with active faulting, likely locations occurrence future earthquakes can be refined; faults in Izmit Bay area, western part Biga...
The extent to which interseismic coupling controls the slip distribution of large megathrust earthquakes is unclear, with some authors proposing that it primary control and others suggesting stress changes from previous are first‐order importance. Here, we develop a detailed history Sunda megathrust, modified by coupling, compare correlation between versus coupling. We find distributions recent more consistent field than but observe in places, pattern strongly dependent on poorly constrained...
Summary We explore the possible stress triggering relationship of M≥ 6.4 earthquakes that occurred in Kerman Province, southern Iran since 1981. calculated changes due to both coseismic sudden movement upper crust and time-dependent viscous relaxation lower and/or mantle following event. Four events between 1981 2005, on close Gowk fault, show a clear Coulomb load failure relationship. The 2003 M= 6.5 Bam earthquake, however, which approximately 95 km SW closest event, shows very weak...
We investigate controls on tsunami generation and propagation in the near‐field of great megathrust earthquakes using a series numerical simulations subduction tsunamigenesis Sumatran forearc. The Sunda here is advanced its seismic cycle may be ready for another earthquake. calculate seafloor displacements wave heights about 100 complex earthquake ruptures whose synthesis was informed by reference to geodetic stress accumulation studies. Remarkably, results show that, any location: (1)...
We present a numerical investigation of the effect that static stress perturbations due to fluid injection have on nearby active fault where does not come in physical contact with fault. Our modelling employs lattice Boltzmann pore diffusion model coupled quasi-dynamic earthquake rupture model. As diffusivities and frictional parameters can be defined independently at individual nodes/cells this allows us replicate complex 3-D geological media our simulations. demonstrate an Compared control...
We calculated Coulomb failure stress change caused by the March 13, 1992 Erzincan, Turkey, earthquake, and explored relationship between aftershock distribution which includes Pülümür earthquake (Ms=5.8) that occurred two days later. One of most significant features Erzincan was location aftershocks, did not correspond with either eastern segment North Anatolian fault zone or Ovacik fault. This feature can be explained mapping due to earthquake. The map revealed there is a correlation areas...
Wide‐band magnetotelluric (MT) data across the İzmir‐Ankara Suture Zone (İASZ), Bornova Flysch and Menderes Massif of western Turkey images shallow deep crustal structures. Inversions MT reveals two subzones crust with varying thickness; viscoelastic lower appears as a conductive zone (<75 ohm m), while brittle upper is shown relatively high resistivity in geoelectrical model. We also observe very interesting twin‐core structure (>2000 m) at depth from 5 km to 25 under İASZ. A...
Abstract The Korucu-Dugla study area ( 225km2 ) located in western Turkey was selected for the application of Landsat Thematic Mapper TM) data to geological studies. A wide variety image processing techniques including; principal component analysis PC) intensity-saturation-hue transformation ISH), TM band ratios, and edge enhancement were applied discriminate lithologies structure as well associated areas hydrothermal alteration. Colour composites PCI, 2 3, always encoded red, green blue...