Structural framework of onshore and offshore Avcılar, İstanbul under the influence of the North Anatolian fault

Abstract

To investigate the onshore/offshore structural framework of the northern shelf of the Sea of Marmara, a multidisciplinary study was carried out including multichannel and single-channel seismic reflection profiling, multibeam bathymetry sounding, side-scan sonar imaging on offshore as well as land studies for S-wave velocity estimation by passive and active array measurements and monitoring of block deformations by Global Positioning System (GPS). Based on the multidisciplinary data, possible interactions between landslides and active faulting have been reviewed and their possible relation to the North Anatolian Fault Zone (NAFZ) has been discussed.