Academic Info

- Research Interests:               

I am specialized on a branch of geophysics, namely “geomagnetism” and have been working on varieties of subjects under this topic. These include;

  1. (i) Internal (main) geomagnetic field studies (in particular, westward drift of the non-dipole field),

  1. (ii) External geomagnetic field studies (Magnetic effects of solar eclipses on the ionosphere, Solar and Lunar geomagnetic variations),

  1. (iii) Electromagnetic induction in the crust and upper mantle (These include applications of magnetotelluric method on active/passive faults, volcanoes, geothermal areas and ocean bottom EM studies).

(The relevant papers are listed below).

  1. -Education:

Ph.D., Geophysics, Tokyo Institute of Technology, 2004

M.Sc., Geophysics, Boğaziçi University, 1998

B.Sc., Geophysics, Istanbul University, 1995

  1. -Research Projects (2006-2016)

Imaging the Shallow Crustal Structure and Rheology of Ganos Fault and its vicinity by Audio Frequency Magnetotellurics 2015 - 2016 (ongoing).

Continental Dynamics/Central Anatolian Tectonics, U.S. National Science Foundation, 2011 - 2017 (ongoing).

Investigating The Electrical Resistivity Structure of the North Anatolian Fault -mid sections- in Two and Three Dimensions, Scientific Research Projects, 6005, Boğaziçi University, 2011.

Electromagnetic imaging of fluids in the seismogenic zone at the western part of North Anatolian Fault Zone, Post-doc. project, Japan Society for the Promotion of Science (JSPS), 2008 – 2010.

Anomalous resistivity structure beneath the seismic gap at the western part of North Anatolian Fault and its relation to earthquake generation processes, Japan Society for the Promotion of Science (JSPS), 2007 – 2010.

Electric and magnetic studies of seismogenic zones, TUBITAK - NASU, 2006-2008.

Imaging the resistivity structure near the fault zones, Scientific Research Projects, Boğaziçi University, 08HT201, 2008 – 2009.

Imaging the crustal structure near Uludağ, Bursa by EM methods, Scientific Research Projects, Boğaziçi University, 06T201, 2006 – 2008.

  1. -Courses Offered

GPH 530 Electromagnetic Methods in Geophysics

GPH 531 Fields in Geophysics

GPH 532 Geomagnetism and Paleomagnetism

GPH 630 Magnetotelluric Method (MT)

GPH 631 Advanced Geomagnetism

GPH 633 Numerical Methods in Electromagnetics

  1. -Publications in peer reviewed journals

14. Honkura Y., N. Oshiman, M. Matsushima, Ş. Barış, M.K.Tunçer, S.B.Tank, C. Çelik, E. Tolak-Çiftçi, Rapid changes in the electrical state of the 1999 Izmit earthquake rupture zone, Nature Communications, doi: 10.1038/ncomms3116, 2013.

13. Kaya T., T. Kasaya, S.B.Tank, Y. Ogawa, M.K. Tunçer, N. Oshiman, Y. Honkura, M. Matsushima, Electrical Characterization of the North Anatolian Fault Zone in the Marmara Sea, Turkey by Ocean Bottom Electromagnetic Method, Geophys. J. Int., doi: 10.1093/gji/ggt025, 2013.

12. Karcıoğlu G., S. B.Tank, A.Gürer, E. Tolak-Çiftçi, T. Kaya, M. K. Tunçer, Upper Crustal Electrical Resistivity Structures in the Vicinity of the Çatalca Fault, Istanbul, Turkey by Magnetotelluric Data, Studia Geophysica et Geodaetica, Springer, 57, 2013.

11. Tank S.B., Fault zone conductors in Northwest Turkey inferred from audio frequency magnetotellurics, Earth Planets Space, 64, 729 - 742, 2012.

10. Çelik C, M.K. Tunçer, E.Tolak-Ciftçi, M. Zobu, N.Oshiman, S.B.Tank, Solar and lunar geomagnetic variations in the northwestern part of Turkey, Geophys. J. Int., 189, Issue 1, 391 - 399, 2012.

9. Kaya T., S.B.Tank, M.K. Tunçer, I.I. Rokityansky, E. Tolak, T. Savchenko, Asperity along the North Anatolian Fault imaged by magnetotellurics at Düzce, Turkey, Earth Planets Space, 61, 871 – 884, 2009.

8. Nurhasan, Y.Ogawa, N.Ujihara, S.B.Tank, Y.Honkura, S.Onizawa, T.Mori, M.Makino, Two electrical conductors beneath Kusatsu-Shirane volcano, Japan, imaged by audiomagnetotellurics and their implications for hydrothermal system, volcanic seismicity and deformation, Earth Planets Space, 58, 1053–1059, 2006.

7. Aizawa, K., R. Yoshimura, N. Oshiman, K. Yamazaki, T. Uto, Y. Ogawa, S.B.Tank, W. Kanda, S. Sakanaka, Y. Furukawa, T. Hashimoto, M. Uyeshima, T. Ogawa, I. Shiozaki, T. Hurst, Hydrothermal System beneath Mt. Fuji volcano inferred from Magnetotellurics and Electric Self-potential, Earth and Planetary Science Letters, 235, 343– 355, 2005.

6. Tank S.B., Y. Honkura, Y. Ogawa, M. Matsushima, N. Oshiman, M. K. Tunçer, C. Çelik, E. Tolak, and A. M. Işıkara, Magnetotelluric imaging of the fault rupture area of the 1999 İzmit (Turkey) earthquake, Phys. Earth Planet. Inter., 150, 213–225, 2005.

5. Tank S.B., Y. Honkura, Y. Ogawa, N. Oshiman, M. K.Tunçer, M. Matsushima, C. Çelik, E. Tolak, and A. M. Işıkara, Resistivity structure in the western part of the fault rupture zone associated with the 1999 İzmit earthquake and its seismogenic implication, Earth Planets Space, 55, 437-442, 2003.

4. Matsushima M., Y. Honkura, N. Oshiman, Ş. Barış, M. K. Tunçer, S.B.Tank, C. Çelik, F. Takahashi, M. Nakanishi, R. Yoshimura, R. Pektaş, T. Komut, E. Tolak, A. Ito, Y. Iio, and A. M. Işıkara, Seismo- electromagnetic effect associated with the İzmit earthquake and its aftershock, Bull. Seis. Soc. Am., v92, pp. 350-360, 2002.

3. Honkura Y., A. M. Işıkara, N. Oshiman, A. Ito, B. Üçer, Ş. Barış, M.K. Tunçer, M. Matsushima, R.Pektaş, C. Çelik, S.B.Tank, F. Takahashi, M. Nakanishi, R. Yoshimura, Y. Ikeda, and T. Komut, Preliminary results of multidisciplinary observations before, during and after the Kocaeli (İzmit) earthquake in the western part of the North Anatolian Fault Zone, Earth Planets Space, 52, 293 - 298, 2000.

2. Malin S. R. C., O. Özcan, S.B.Tank, M. K. Tunçer and O. Yazıcı - Çakin, Geomagnetic signature of the 1999 August 11 total eclipse, Geophys. J. Int. 140, F13 - F16, 2000.

1. Tank S.B., Rotation of the geomagnetic field about an optimum pole, Geophys. J. Int. 140, 461 –464, 2000.

  1. -Graduate students:

Mustafa Karaş (M.Sc. student)

Sinan Özaydın (M.Sc. student)

Göksu Uslular, Muğla Sıtkı Koçman University (Ph.D. candidate (co))

- Graduates:

Ekrem Bekin (M.Sc. 2016)

Fatih Uzunca, Sakarya University (M.Sc. (co), 2016)

Özlem Cengiz, (M.Sc., 2012)

Gökhan Karcıoğlu, İstanbul University (M.Sc. (co), 2008)

Tülay Kaya (M.Sc., 2007)

*co: co-supervisor

  1. - Reviewer for:

Geophysical Journal International (3)

Tectonophysics (2)

Earth, Planets and Space (3) 

Pure and Applied Geophysics (2)

Turkish Journal of Earth Scientists (2)

Journal of Asian Earth Sciences (1)

The Journal of Terrestrial, Atmospheric and Oceanic Sciences (1)

Hacettepe Yerbilimleri (1)


Sabri Bülent Tank, Ph.D.

Assoc. Prof. @

Dept. of Geophysics

Kandilli Observatory & E.R.I,

Boğaziçi University


Phone: + 90 216 516 32 41

Fax: +90 216 332 02 40



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