Ulas Avsar


​Now Assistant Professor at METU, Turkey​​​


Research Interests

​My research mainly focuses on sedimentary traces of past earthquakes in lake deposits. I use high-resolution physical, mineralogical, geochemical and geochronologicaldata from sediment cores to disentangle the sedimentary traces of earthquakes from paleoclimatic or paleoenvironmental signals. In addition to the paleolimnological techniques, paleoseismic trenching and historical seismicity are also in my research interests.

Selected Publications

  • Avşar, U., S. Jónsson, Ö. Avşar and S. Schmidt, Earthquake-induced soft-sediment deformations and seismically amplified erosion rates recorded in varved sediments of Köyceğiz Lake (SW Turkey), J. Geophys. Res., 121, doi: 10.1002/2016JB012820, 2016.
  • Avşar, U., A. Hubert-Ferrari, M. De Batist, S. Schmidt, N. Fagel, Sedimentary records of past earthquakes in Boraboy Lake during the last ca 600 years (North Anatolian Fault, Turkey). Palaeogeography, Palaeoclimatology, Palaeoecology 433, 1-9, 2015.​
  • Avşar, U., A. Hubert‐Ferrari, M.D. Batist, N. Fagel, A 3400 year lacustrine paleoseismic record from the North Anatolian Fault, Turkey: Implications for bimodal recurrence behavior, Geophysical Research Letters 41 (2), 377-384, 2014.
  • Avşar, U., A. Hubert‐Ferrari, M.D. Batist, G. Lepoint, S. Schmidt, N. Fagel, Seismically-triggered organic-rich layers in recent sediments from Lake Göllüköy (North Anatolian Fault, Turkey), Quaternary Science Reviews, doi: 10.1016/j.quascirev.2014.08.020, 2014.
  • Hubert-Ferrari, A., U. Avsar, M. El Ouahabi, G. Lepoint, N. Fagel, Paleoseismic record obtained by coring a sag-pond along the North Anatolian Fault (Turkey), Annals of Geophysics, 55 (5), 929 – 953, 2012.
  • Fraser, J., A. Hubert-Ferrari, K. Verbeeck, D. Garcia Moreno, U. Avsar, N. Maricq, A. Coudijzer, N. Vlamynck, K. Vanneste, A 3000-year Record of Surface Rupturing Earthquakes at Gunalan; Variable Rupture Lengths on the 1939 Erzincan Earthquake Rupture Segment of the North Anatolian Fault, Turkey, Annals of Geophysics, 55 (5), 895 – 927, 2012.
  • Garcia Moreno, D., A. Hubert-Ferrari, J. Moernaut, J.G. Fraser, X. Boes, M. Van Daele, U. Avsar, N. Çağatay, M. De Batist, Structure and recent evolution of the Hazar basin: A Strike-slip basin on the East Anatolian Fault, Eastern Turkey, Basin Research, (23/2), 191-207, 2011.
  • Fraser, J., J.S. Pigati, A. Hubert–Ferrari, K. Vanneste, U. Avsar, S. Altinok, A 3,000-Year Record of Ground-Rupturing Earthquakes along the Central North Anatolian Fault near Lake Ladik, Turkey, Bulletin of the Seismological Society of America, (99/5), 2681-2703, 2009.​


  • Postdoctoral Fellow, KAUST, 2013-2016
  • Ph.D. Department of Geology and Soil Sciences, University of Gent, Belgium, 2013
  • M.S. Department of Geological Engineering, Middle East Technical University (METU), Turkey, 2006
  • B.Sc. Department of Geological Engineering, Middle East Technical University (METU), Turkey, 2003