Ali Osman Öncel, Ph.D

Earth Sciences Department

King Fahd University of Petroleum & Minerals

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  1. Oncel, A.O., Aydan,O.,2003. Variations in GPS-derived displacement and stresses during the 2003 Miyagi earthquakes, International Colloquium on the instrumentation and monitoring of landslides and earthquakes in Japan and Turkey, ORAL.

  2. Oncel, A.O., Wilson, T., 2003. Variations in GPS strain rate and their relationship to seismic hazard variables in western Turkey,American Geophysical Union Meeting, POSTER.

  3. Oncel, A.O., Wilson, T., 2003. pace-time correlations of seismotectonic parameters: Examples from Japan and from Turkey preceding the Izmit earthquake, in International Work Shop on North Anatolian, East Anatolian and Dead sea Fault Systems, Ankara-Turkey, September 5, 2003., POSTER.

  4.  Oncel, A.O.,, 2002. Earthquake-induced static stress changes and the 1985 Nahanni earthquakes, Northwest Territories, Canada, American Geophysical Union Meeting, POSTER.

  5. Oncel, A.O., Wilson, T., 2002. The relationship of microplate velocity field to seismotectonic variables: Example from western Turkey and the Eastern Mediterranean, Seismological Society of America Meeting, ORAL

  6. Oncel, A.O., Wilson, T., 2002. Space-time correlations of seismotectonic parameters: Examples from Japan and Turkey preceeding the Izmit earthquake Seismological Society of America Meeting, POSTER.

  7. Oncel, A.O., Wilson, T, “Correlation of seismotectonic variables and GPS strain measurements in western Turkey and the eastern Mediterranean”,Seismological Society of America Meeting, ORAL, USA 2004.

  8. Kijko, A., Graham,G., Oncel, A.O., 1998. "Parametric – Historic" Procedure for Seismic Hazard Assessment and Its Application to the Istanbul Area , Abstracts, TMS 2 Hazard Assessment, September 21-25, Istanbul.

  9.  Oncel, A and LaForge, R., 1998. Probabilistic Seismic Hazard for the North Anatolian Fault Zone Based on Areal Sources, Fall Meeting of Seismological Society of Japan, October 26-28, 1998, Fukui, Japan, ORAL.

  10. Mostafazadeh, M., Alptekin, O., Oncel, A.O.,1998. Waveform Modeling for Five Earthquakes in the Zagros Fold-Thrust Belt, Second meeting of Asian Commision and Symposioum on Earthquake Hazard Assessment and Earth’s Interiour Related Topics, December 1-3, 1998, Abstracts, pp., 19, Hyderabad, India.

  11. LaForge, R., Alptekin, O., 1998. Probabilistic Seismic Hazard for the North Anatolian Fault Zone Based on Areal Sources, Abstracts, TMS 2 Hazard Assessment, September 21-25, Istanbul.

  12. Kijko, A., Graham,G., Oncel, A.O., 1998.  “Parametric – Historic” Procedure for Seismic Hazard Assessment and Its Application to the Istanbul Area, Abstracts, TMS 2 Hazard Assessment, September 21-25, Istanbul.

  13. Mostafazadeh,M.,Alptekin,Ö., Öncel,A.O.,1997. Source inversion of two moderately large earthquakes in the Taurus-Zagros thrust belt, Annales Geophysicae, Part I, pp.18, EGS 1997 meeting-Viyana- Australia.

  14. Öncel, A.O., Alptekin, Ö., 1996. Fractal analysis of earthquake occurrence in the Strike-Slip Faulting of Turkey,Earthquake Research in Turkiye, Abstracts, pp., 50,Ankara-Turkey ,ORAL.

  15. Öncel, A.O., Alptekin, Ö., 1996. Complexity of the strike-slip faulting of Turkey, Earthquake Research in Türkiye, Abstracts, pp., 21,Ankara-Turkey, POSTER.

  16. Koral, H.,Öncel,A.O.,1996. Faulting and Seismicity in Izmit Bay, Earthquake Research in Türkiye, Abstracts, pp., 19,Ankara-Turkey.

  17. Yüksel,A.and Öncel,A.O.,1996. Enviromental problems caused by damaged earthquakes in Turkey, 103-108, Proceedings of  IX.Engineering week of the  Süleyman Demirel University held on 29-31 May,Isparta-Turkey.

  18. Öncel, A.O., Alptekin, Ö., 1996. Effect of aftershocks on estimation of earthquake hazard parameters: An example from the north Anatolian fault zone, ,Annales Geophysicae, vol.14, pp.78, EGS 1996 meeting-Hague- Netherlands , ORAL.

  19. Öncel, A.O., Alptekin, Ö., Koral,H.,1996. The Dinar earthquake of october 1, 1996    (ML=5.9) in southwestern Turkey and earthquake hazard of the Dinar-Çivril fault, Abstracts, pp., 28, AGU Spring  Meeting-Baltimore-USA, POSTER.

  20. Oncel, A.O., Molchan, G., Alptekin, Ö.,Kronrod,T.,1995. Estimation of seismic risk     on the Anatolian fault zones, Second International Turkish Geology Workshop, 76, ISBN    975-7631-30-2, September 6-8, 1995, ISBN 975-7631-30-2,Sivas-Turkey.

  21. Öncel, A.O.,Yüksel,F.A.,Alptekin.,Ö,Main,I.,Khalili,A.,1995.  A preliminary fractal analysis of faulting in the Zagros thrust belt, The 2nd International Conference on Seismology and Earhquake Engineering (SEE-2)-Tehran-IRAN.

  22. Öncel,A.O.,Main,I.,Alptekin,Ö.,Cowie,P.,1995. Fractal properties of faulting and seismicity in the Anatolian fault zones, Annales Geophysicae, vol.13, pp.560, EGS meeting-Hamburg-Germany, POSTER.

  23. Öncel, A.O., Alptekin, Ö., 1995. Fractal distribution and its application in Seismology, Nezihi Canıtez  Symposium. 82, 12-14 Nisan 1995, İstanbul-Turkey, ORAL.

  24. Koral,H., Öncel,A.O., 1995. Seismological and structural properties of Izmit and vicinity,    Nezihi Canıtez Symposium. 82, 12-14 Nisan 1995, ISSN 0259-1472, Istanbul-Turkey.

  25. Öncel, A.O., Alptekin, Ö., 1995. Earthquake risk in Marmara Sea, Turkish National Union of Geodesy and Geophysics.General Assembly, Vol.3., pp.981-989, 1-5 May 1995- Ankara-Turkey.

  26. Khalili, A., Yüksel,A.,Öncel,A.O.,1995.  Deformation release on the dam of Karkheh (Iran) and vicinity, TJK, Ankara-Turkey.

  27. Öncel,A.O.,Main,I.,Alptekin,Ö.,Cowie,P.,1994. Temporal-Variation of the fractal dimension of seismicity in the western part of the north Anatolian fault zone, 20 International Conference on the Mathematical Geophysics, Abstracts, pp., 67, Nice-France, POSTER.

  28. Öncel,A.O.,Main,I.,Alptekin,Ö.,1994. Temporal Variations in the Fractal Properties of Seismicity in  the Northern Anatolian Fault  Zone, 1st Turkish International Symposium on Deformations, September 5-9,1994, Abstracts, pp.72, Istanbul-Turkey, ORAL.

  29. Alptekin,Ö.,Öncel,A.O.,1993. Seismic Risk Estimates on the North Anatolian Fault Zone, presented at the 46.Geological Congress of Turkey at held on 5-10 April 1993, Ankara-Turkey, ORAL.

  30. Alptekin,Ö., Öncel,A.O.,Nalbant,S.,1993. Fractal Properties of The North Anatolian Fault   Zone,Turkish National Union of Geodesy and Geophysics.General Assembly, 8-11 June 1993, Ankara-Turkey.

  31. Öncel,A.O.,Alptekin,Ö.,Nalbant,S.,1993. Fractal Properties of Fault Systems-The North   Anatolian Fault System, An Example. Symposium For The 25 th Anniversary of Earth Sciences at Hacettepe University,November,15-18 1993 in Ankara-Turkey.

  32. Alptekin,Ö.,Öncel,A.O.,1993. Seismicity of Erzincan and Vicinity and Seismic Risk Estimates, Symposium For The 25 th Anniversary of Earth Sciences At Hacettepe University, November, 15-18 1993 in Ankara-Turkey.

  33. Alptekin,Ö., Öncel,A.O.,Yörük,A.,1992. Maximum Likelihood Estimation of Seismic Risk   for the North Anatolian Fault Zone, presented at 25 May 1992 in 7.Engineering week of the Mediterranean University held on 25-29 may 1992 in Isparta-Turkey