Deep crustal structure of the North Anatolian Fault and the earthquake cycle Dense Array for Northern Anatolia

Sebastian Rost
2015
Deep crustal structure of the North Anatolian Fault and the earthquake cycle Dense Array for Northern Anatolia
This is a Full Scientific Report resulting from NERC Geophysical Equipment Facility Loan 947, principal investigator Dr Sebastian Rost.

Abstract

A passive seismic experiment was conducted across the North Anatolian Fault Zone in the region of the rupture of the 1999 Izmit earthquake (M=7.6). The project aimed to resolve the fine scale crustal structure of the Fault Zone using scattered seismic waves. The 63 autonomous seismic stations were deployed on a regular grid covering approximately 35 by 70 km with a nominal station spacing of 7 km. The network also included 3 permanent stations of the Turkish National Earthquake Monitoring Network. The network was augmented by 7 autonomous seismic stations forming a semi-circle around the dense array and provided by the Kandilli Observatory and Earthquake Research Institute (KOERI). Stations were recording continuously at 50Hz sampling rate between May 2012 and September 2013. The data quality of DANA was generally good despite many stations being deployed in industrial and heavily populated areas. Data recovery across the whole network (including KOERI stations, but not permanent stations) was excellent with an average data recovery of 94%. The data from DANA offers opportunity for a multitude of analysis methods. Analysis of the data is ongoing, but several initial results are in revision or have been published. These include a detailed receiver function analysis, local earthquake detection and location and resolution of crustal structure from transfer functions.

Full Report

PDF Deep crustal structure of the North Anatolian Fault and the earthquake cycle Dense Array for Northern Anatolia (1.8 Mb)
Cite as:
Rost, S., "Deep crustal structure of the North Anatolian Fault and the earthquake cycle Dense Array for Northern Anatolia", NERC Geophysical Equipment Facility, Scientific Report 947, 2015

Selected external publications resulting from this GEF loan

  1. Papaleo, E., Cornwell, D. and Rawlinson, N., 2018, Constraints on North Anatolian Fault Zone Width in the Crust and Upper Mantle From S Wave Teleseismic Tomography, Journal of Geophysical Research: Solid Earth, 123(4), p2908-2922, doi: 10.1002/2017JB015386
  2. Altuncu Poyraz, S., Ugur Teoman, M., Turkelli, N., Kahraman, M., Cambaz, D., Mutlu, A., Rost, S., Houseman, G.A., Thompson, D.A., Cornwell, D., Utkucu, M. and Gulen, L., 2015, New constraints on micro-seismicity and stress state in the western part of the North Anatolian Fault Zone: Observations from a dense seismic array, Tectonophysics, 656, pp190-201, doi: 10.1016/j/tecto.2015.06.022
  3. Frederiksen, A.W., Thompson, D.A., Rost, S., Cornwell, D.G., Gulen, L., Houseman, G.A., Kahraman, M., Poyraz, S.A., Teoman, U.M., Turkelli, N. and Utkucu, M., 2015, Crustal thickness variations and isostatic disequilibrium across the North Anatolian Fault, western Turkey, Geophysical Research Letters, doi: 10.1002/2014GL062401
  4. Kahraman, M., Cornwell, D.G., Thompson, D.A., Rost, S., Houseman, G.A., Turkelli, N., Teoman, U., Altuncu Poyraz, S., Utkucu, M. and Gulen, L., 2015, Crustal-scale shear zones and heterogeneous structure beneath the North Anatolian Fault Zone, Turkey, revealed by a high-density seismometer array, Earth and Planetary Science Letters, 430, pp129-139, doi: 10.1016/j.epsl.2015.08.014
  5. Taylor, G., Rost, S. and Houseman, G., 2016, Crustal Imaging Across the North Anatolian Fault Zone from the Auto-Correlation of Ambient Seismic Noise, Geophysical Research Letters, doi: 10.1002/2016GL067715
  6. Hussain, E., 2016, Mapping and Modelling spatial variation in strain accumulation along the North Anatolian Fault, University of Leeds, PhD Thesis
  7. Houseman, G.A., 2017, Why Earthquakes Threaten Two Major European Cities: Istanbul and Bucharest, European Review, p1-20, doi: 10.1017/S1062798717000448
  8. Papaleo, E., Cornwell, D.G. and Rawlinson, N., 2017, Seismic tomography of the North Anatolian Fault: New insights into structural heterogeneity along a continental strike-slip fault, Geophysical Research Letters, 44(5), p2186-2193, doi: 10.1002/2017GL072726
  9. Farrell, K., 2017, Characterising the deep structure and seismic signature of an exhumed ductile shear zone , University of Leeds, PhD Thesis
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