EGU2020-21829, updated on 16 Oct 2020
https://doi.org/10.5194/egusphere-egu2020-21829
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Investigating the Earthquake Cycle along Marmara Sea Region of North Anatolian Fault by means of seismo-geodetic observations

Haluk Ozener1, Bahadir Aktug2, Onur Yilmaz1, Asli Sabuncu1, Bengisu Gelin1, Kaan Alper Uçan1, Bulent Turgut1, and Maryna Batur1
Haluk Ozener et al.
  • 1Bogazici University, Kandilli Observartory&Earthquake Research Institute, Geodesy, Istanbul, Turkey (ozener@boun.edu.tr)
  • 2Ankara University, Department of Geophysical Engineering, Ankara, Turkey

Since 1766, the North Anatolian Fault Zone in the Marmara Sea has not generated a Mw=7.0 earthquake. In the Marmara Sea, three different segments are located having ~25 mm slip rates and ~10 mm slip deficit per year. The faulting mechanism within the Marmara Sea has capability of generating earthquakes larger than Mw7.0. We are continuously monitoring this critical region with more than 30 seismo-geodetic stations equipped with 100 Hz sampling seismographs and 1 Hz sampling GPS receivers, in order to detect fast and slow tectonic motions in and around the Marmara Sea at temporal and spatial scale from milliseconds to years and from centimeters to tens of kilometers.

The data obtained during this study provides us to identify the slip deficit along the fault, the segmentation of fault, the interaction between slip-deficit and background seismicity. Besides, these data also contribute to identify the pre-seismic seismo-geodetic behavior and co-seismic slip when Mw=7.0 type of earthquakes occurs.

How to cite: Ozener, H., Aktug, B., Yilmaz, O., Sabuncu, A., Gelin, B., Uçan, K. A., Turgut, B., and Batur, M.: Investigating the Earthquake Cycle along Marmara Sea Region of North Anatolian Fault by means of seismo-geodetic observations, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-21829, https://doi.org/10.5194/egusphere-egu2020-21829, 2020