Esra ÇETİN
(Research Assistant, Ph.D.)
Contact
Address
Mugla S.K. University
Engineering Faculty
Dept. of Geological Engineering.
Block E, Z-11
Kötekli – 48000 Muğla
Turkey
Tel: +90 (252) 211 1911
e-mail: esracetin [at] mu.edu.tr
Research Topics
Active Tectonics
Spatial Geodesy (InSAR)
Crustal Deformation
Earthquake Cycle
Fault Creep
Seismology
GIS and Remote Sensing
Positions
| Research Assistant (Ph.D.) | Muğla Sitki Kocman University, Department of Geological Engineering | 2015 – ? |
| Research Assistant | Istanbul Technical University, Department of Geological Engineering | 2011 – 2015 |
| Research Assistant | Mugla University, Department of Geological Engineering | Feb.- Dec. 2010 |
Education
| Joint PhD | University of Strasbourg – Institute de Physique du Globe Strasbourg Istanbul Technical University – Graduate School of Science, Engineering and Technology Geophysics & Geology Thesis: “Analysis and modeling of crustal deformation using InSAR time series along selected active faults within the Africa-Eurasia convergence zone” Supervisors: Prof. Dr. Ziyadin Cakir (ITU), and Prof. Dr. Mustapha Meghraoui (IPGS) |
2015 |
| M.Sc. | Istanbul Technical University – Eurasia Institute of Earth Sciences Earth System Science Thesis: “Source parameters of the 1 October 1995 Dinar (Afyon) Earthquake from
seismology and InSAR techniques” Supervisor: Prof. Dr. Ziyadin Cakir |
2010 |
| B.Sc. | Istanbul Technical University – Geological Engineering Department Thesis: “Geology of Northeastern Imbros Island (Turkey)” Supervisor: Prof. Dr. Aral I. Okay |
2008 |
Undergraduate Courses
- Introduction to GIS [GEOE 1004]
- Geophysical Prospecting [GEOE 3014]
- Computer Applications in Geological Engineering [GEOE 4513]
Undergraduate Courses (as Teaching Assistant)
- Physical Geology [GEOE 1004]
My research’s key aspect is to ameliorate our understanding of the crustal deformation in all phases of the earthquake cycle, which is simply conceptualized on cyclic build up and release of elastic strain around faults and that is complemented by transient deformation. Since I conceive the analysis of ground deformation associated with the earthquake cycle of utmost importance in the field of active tectonics, most of my studies concentrate on the detection of ground deformation and the estimation of its extent and rate of seismic and/or aseismic slip distribution along the fault plane. I adopt Satellite-based Interferometric Synthetic Aperture Radar (InSAR) combined with numerical modeling in elastic and visco-elastic half-spaces, and integrated with data from geology, seismology, geodesy, and hydrology to study the spatio-temporal behavior of those crustal deformations. Its spatiotemporal variation along the faults has pivotal implications for forecasting the timing, locations, and potential sizes of future earthquakes and for understanding the fault behavior.
My deep-rooted research objectives are to pursue:
- Surface creep and postseismic deformation along different types of active faults in order to reveal slow crustal deformation characteristics.
- To use the new generation SAR images to enhance the resolution of measurements.
- To broaden my experience on modeling with modern numerical approaches encompassing both elastic and visco-elasic half-spaces.
The prime research questions about surface creep that I want to tackle are: 1) What are the boundaries of creeping depth? 2) How the aseismic slip distribution changes along the fault? 3) How the aseismic creep get commenced?.
The second research topic that excites me is better understanding of postseismic deformation mechanisms. There are four mechanisms of postseismic deformation that could cause significant displacements near the rupture following the moderate-to-large sized earthquakes. My research plan involves the following route: 1) Scanning several locales worldwide study cases; 2) Obtaining InSAR and/or GPS time series data; 3) Modeling with elastic and/or visco-elastic relaxation approaches; 4) Comparing with observed ones such as field investigations, seismologic data and other possible hydrologic, geologic data.
Currently, I am working on co-and post-seismic deformation associated with the 2004 Al Hoceima (Mw 6.4, Morocco) earthquake. I utilize InSAR and aftershocks distribution to constrain the earthquake rupture. Moreover, I carry out research on M9-class earthquake cycle in the Northeastern Japan’s (Honshu Coast) subduction zone on various timescales according to vertical deformation from field investigations and GPS observations. The accumulated strain between M9-class earthquakes is a vital component of active deformation that contributes to the pattern of seismic cycle at plate boundary zones. This work is particularly significant for the evolution of the return period for M9-class earthquakes estimation.
Keywords: Active tectonics, spatial geodesy (InSAR), crustal deformation (associated with the earthquake cycle), fault creep, earthquake and fault processes, seismology, GIS and remote sensing.
Projects
- 2016 – 2017 / Coordinator: Iztuzu Sahili ve Cevresinin Morfolojik, Hidrolojik ve Jeolojik Ozelliklerinin Tanimlanmasi, [MSKU BAP Proje No: 16/026].
- 2016 – 2018 / Coordinator: Iztuzu Kumsali Yonetim Plani Ulasilabilir Veri Tabaninin Olusturulmasi ve Islenmesi Projesi, [MSKU BAP Proje No: 16/027].
- 2006 – 2009 / Granted Researcher: Mapping and modelling coseismic and interseismic surface deformation in Turkey using Synthetic Aperture Radar Interferometry (InSAR) [Tübitak Proje no: 107Y281: 2006-2009] Project Coordinator: Çakır, Z.
Publications
2017
Kariche, J., Meghraoui, M., Timoulali, Y., Cetin, E., & Toussaint, R. (2017), The Al Hoceima earthquake sequence of 1994, 2004 and 2016: Stress transfer and poroelasticity in the Rif and Alboran Sea region, Geophysical Journal International, 212(1), 42-53.
2014
Cetin, E., Cakir, Z., Meghraoui, M., Ergintav, S., and Akoglu, A.M. (2014), Extent and distribution of aseismic slip on the Ismetpaşa segment of the North Anatolian Fault (Turkey) from Persistent Scatterer InSAR, Geochem. Geophys. Geosyst., 15, doi:10.1002/2014GC005307.
2012
Cetin, E., Meghraoui, M., Cakir, Z., Akoglu, A.M., Mimouni, O., and Chebbah, M. (2012), Seven years of postseismic deformation following the 2003 Mw=6.8 Zemmouri earthquake (Algeria) from InSAR Time Series, Geophysical Research Letters , 39, L10307, doi:10.1029/2012GL051344.
Conference Abstracts
2017
Kariche, J., Meghraoui, M., Timoulali, Y., Cetin, E., & Toussaint, R. (2017). The Al Hoceima earthquake sequence of 1994, 2004 and 2016: Stress transfer and poro-elasticity in the Rif and Alboran Sea region, EGU General Assembly 2017, Vienna, Austria, 23-28 April 2017. (oral)
2016
Cetin, E., Meghraoui, M., Çakır, Z., Detecting co- and post-seismic surface deformation using InSAR: case studies of the 2003 Zemmouri (Mw 6.8, Algeria) and 2004 Al Hoceima (Mw 6.4, Morocco) earthquakes, 1st General Assembly of African Seismological Commission, Luxor-Aswan, Egypt, 2-5 April 2016. (oral)
2015
Meghraoui, M., Ferry, M., Mechernich, S., Cetin, E., and Masson, F., M9-Class Earthquake Cycle Revealed From Vertical Deformation of the Honshu Coast (NE Japan) on Various Timescales, AGU Fall Meeting 2015, San Francisco, California, USA, 14-18 December 2015.
2014
Cetin, E., Cakir, Z., Meghraoui, M., Akoglu, A.M., Tahayt, A., and Gonzalez, P.J., Coseismic and postseismic deformation associated with the Mw=6.4 February 24, 2004 Al Hoceima earthquake (Morocco) from InSAR: Evidence for triggered postseismic slip on neighboring faults, AGU Fall Meeting 2014, San Francisco, California, USA, 15-18 December 2014. (poster)
Cakir, Z., Ergintav, S., Akoglu, A.M., Cetin, E., Meghraoui M., and Reilinger, R.E., Onset and Mechanisms of Surface Creep on Strike Slip Faults: Clues from the North Anatolian Fault and Comparisons with the San Andreas Fault, AGU Fall Meeting 2014, San Francisco, California, USA, 15-18 December 2014.
Cetin, E., Cakir, Z., Meghraoui, M., Akoglu, A.M., and Tahayt, A., Postseismic deformation following the Mw 6.4 February 24, 2004 Al Hocaima (Morocco) earthquake from InSAR Time Series, Wegener 2014, Leeds, UK, 1-4 September 2014. (oral)
Cetin, E., Cakir, Z., and Meghraoui, M., Monitoring postseismic deformation of the Mw=6.4 February 24, 2004 Al Hoceima (Morocco) earthquake using Multi-Temporal InSAR, European Geosciences Union General Assembly 2014, Vienna, Austria 27 April-2 May 2014. (poster)
Meghraoui, M., Mechernich, S., Cetin, E., Ferry, M., and Masson, F., Constraint on the seismic cycle of the 2011, Mw 9 Tohoku-Oki earthquake region (East Honshu, Japan) from coastal uplift and active deformation, European Geosciences Union General Assembly 2014, Vienna, Austria 27 April-2 May 2014.
2013
Cakir, Z., Ergintav, S., Cetin, E., Cakmak, R., and Tatar, O., PS-InSAR velocity field along the North Anatolian Fault: implications for loading and release of interseismic strain and continental deformation along strike-slip faults, 2013 AGU Fall Meeting, San Francisco, California, USA, 7-13 December 2013.
Cetin, E., Cakir, Z., Dogan, U., Akoglu, A.M., Ozener, H., Ergintav, S., Meghraoui, M., Kuzey Anadolu Fayi Ismetpasa Segmenti uzerindeki krip hareketinin PS-InSAR zaman serileri ile incelenmesi [Analyzing surface creep at Ismetpasa Section of the North Anatolian Fault using InSAR time series], 17th Active Tectonic Research Group Meeting, Antalya, Turkey, 24-25 October 2013. (oral, in Turkish)
Cetin, E., Belabbes, S., Cakir, Z., and Meghraoui, M., Coseismic and Postseismic Deformation Associated with the 2003, Zemmouri Earthquake (Mw 6.8) from InSAR, International Meeting on Earthquakes and Tsunami Hazard in the Mediterranean, Algiers, Algeria, 8-9 June 2013. (oral)
2012
Cetin, E., Cakir, Z., Akoglu, A.M., Ergintav, S., Dogan, U., Ozener, H., and Meghraoui, M., Determination of creep rate and extent at Ismetpasa section of the North Anatolian Fault using Persistent Scatterer InSAR and GPS, 2012 AGU Fall Meeting, San Francisco, California, USA, 3-7 December 2012. (poster)
Mechernich, S., Meghraoui, M., Toda, S., Cetin, E., and Okumura, K., Constraint of the active coastal deformation and seismic cycle in the 2011 Mw 9.0 Tohoku-oki earthquake area, 2012 AGU Fall Meeting, San Francisco, California, USA, 3-7 December 2012.
Cetin, E., Cakir, Z., Akoglu, A.M., Ergintav, S., Dogan, U., Ozener, H., and Meghraoui, M., Detection of creeping around Ismetpasa section of the North Anatolian Fault using geodetic data, PANAF, Istanbul, Turkey, 8-10 October 2012. (oral)
Cakir, Z., Cetin, E., Ergintav, S., Tatar, O., and Akoglu, A. M., Variation of slip rate and locking depth along the eastern section of the North Anatolian Fault deduced from InSAR and GPS observations, PANAF, Istanbul, Turkey, 8-10 October 2012.
Cetin, E., Meghraoui, M., Cakir, Z., Akoglu, A.M., Mimouni, O., and Chebbah, M., Seven years of postseismic deformation in the Mw=6.8, 2003 Zemmouri (Algeria) earthquake area from PS-InSAR, Wegener 2012, Strasbourg, France, 17-20 September 2012. (oral)
Cetin, E., Cakir, Z., Akoglu, A.M., Ergintav, S., Dogan, U., Ozener, H., and Meghraoui, M., Monitoring and modeling of interseismic creep of the North Anatolian Fault at Ismetpasa using Persistent Scatterer InSAR, Wegener 2012, Strasbourg, France, 17-20 September 2012. (poster)
Schmidt, S., Meghraoui, M., Cetin, E., Okumura, K., and Toda, S., Vertical deformation of northeastern Honshu coastline: from minutes to thousands of years and “Implications on the earthquake cycle along the Japan trench, Wegener 2012, Strasbourg, France, 17-20 September 2012.
Cetin, E., Cakir, Z., Akoglu, A.M., Ergintav, S., Dogan, U., Ozener, H., and Meghraoui,, Persistent Scatterer InSAR time series analysis of the creeping section of the North Anatolian Fault at Ismetpasa, European Geosciences Union General Assembly 2012, Vienna, Austria, 22-27 April 2012. (oral)
Cetin, E., Meghraoui, M., Cakir, Z., Mimouni, O., Belabbes, S., Akoglu, A.M., Bouraoui, S., and Chebbah, M., Seven years of postseismic deformation in the Mw=6.8, 2003 Zemmouri (Algeria) earthquake area from PS-InSAR, European Geosciences Union General Assembly 2012, Vienna, Austria, 22-27 April 2012. (poster)
2009
Cakir, Z., Cetin, E., Meghraoui, M., Akoglu, A.M., Ergintav, S., and Tan, O., Source parameters of the Mw=6.1, February 21, 2007 Sivrice (SE Turkey) earthquake: Faulting on a secondary fault from InSAR, 2009 AGU Fall Meeting, San Francisco, California, USA, 14-18 December 2009.
Cetin, E., Tapirdamaz, M.C., Cakir, Z., Akoglu, A.M., Ergintav, S., Tan, O., 1 Ekim 1995 Dinar (Afyon) Depremi (Ms=6.1) faylanma parametrelerinin sismoloji ve InSAR verileriyle belirlenmesi [Source parameters of the 1 October 1995 Dinar (Afyon) Earthquake from seismology and InSAR techniques], 13th Active Tectonic Research Group Meeting, Canakkale, Turkey, 8-11 October 2009. (oral, in Turkish)
Cakir, Z., Cetin, E., Meghraoui, M., Akoglu, A.M., Tan, O., Ergintav, S., İkincil Faylar Uzerinde Meydana Gelen Depremlere Bir Ornek: 21 Subat 2007 Sivrice-Elazig Depremi (M=5.9) [An example of faulting on a secondary fault: February 21, 2007 Sivrice Earthquake (M=5.9)], 13th Active Tectonic Research Group Meeting, Antalya, Turkey, 8-11 October 2009.