Dear Çemen,
I have seen a short Abstract section of your paper about the " Neotectonics and earthquake potential of major structural features in Turkey and surrounding regions". With this occassion, I wanted to explain what I am thinking about the eartquake interpretations in Turkey. As it is known,in Turkey, the investigation of eartquake potentials of different regions are based on,in general, fault's evaluations. As it is well known also, the principal faults are the NAF, EAF,AF,EF and FAULTS in grabens of western Turkey. And the proposed earthquake conclusions are based on the " SURFACE STUDY " and the breaking histories of their branches during different geological times. But I did not see any SUBSURFACE INTERPRETATION of these faults in the affected regions. That is, are these faults vertical, sub-vertical or nearly horizontal in deeper zones in subsurface ? The SUBSURFACE ANTITHETICS and SYNTHETICS are also capable of producing earthquakes in Turkey. As you know, actually ,we have a map, prepared by Mr. Fuat Şaroğlu and his team, of TURKEY'S LIVE FAULTS. But we don't know yet SUBSURFACE DISTRIBUTION of these faults and their branches in subsurface in Turkey. Did you use any subsurface informations, seismic,gravimetric and magnetic data, in your study ?
My main curiosity is that, why not preparing a " SUBSURFACE LIVE FAULT DISTRIBUTION " project in TURKEY. I think among the main causes of eartquakes ,these subsurface faults should be considered first in order not to have suprise eartquake results in Turkey. This new map will be very useful and interesting for earthquake studies in Turkey. Thank you for your interesting research paper. With my best Regards. Prof.Dr. Bülent COŞKUN, Senior Petroleum Geologist.
I think, spatial distribution of seismological data over structural maps intergrated with focal depths of events will serve the purpose. The depth classifications of events falling on faluts (depicts the chronology of stress drop)
This is a century time duration project !with results that are hardly guaranteed. There was enough monitored seismicity in Turkey since the M 8 Erzincan earthquake of 1939 , which if systematically studied and interpreted will give a direct enhanced robust understanding of the seismotectonic picture of Turkey. Adding geophysical data might be useful but is not an absolut exclusive priority. Seismicity data full exploitation ( Turkey has an average of not less than twenty earthquakes and tremors a day, please see attached CSEM map of today's seismicity in the Mediterranean area) combined with GPS and interferometric data analysis will provide a more efficient direct and economical way of dealing with Turkish seismic hazard's potential dilemma.
Dear Coskun,
I have no idea about Turkey fault system, but any active fault system will track down by the advance GPS system for any such movements. if any fault have surface expression then definitely it has, it roots down below the earth's surface. So people are making trenches/deep drilling to trace down the geometry of any minute shift in the material or fault gouge. So such probability can not be denied.
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