A generalized seismic source model for the Eastern Marmara Region along the segments of the North Anatolian Fault System

Cambazoğlu S., Kockar M. K., Akgun H.

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, vol.88, pp.412-426, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 88
  • Publication Date: 2016
  • Doi Number: 10.1016/j.soildyn.2016.07.002
  • Journal Name: SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.412-426
  • Keywords: Seismic source modeling, ASTER, North Anatolian Fault System (NAFS), Probabilistic seismic hazard assessment, Duzce city, Eastern Marmara, Turkey, 17 AUGUST 1999, AVERAGE HORIZONTAL COMPONENT, SPACEBORNE THERMAL EMISSION, REFLECTION RADIOMETER ASTER, SLIP DISTRIBUTION, IZMIT EARTHQUAKE, SURFACE RUPTURE, SEA REGION, TURKEY EARTHQUAKE, JOINT INVERSION
  • Middle East Technical University Affiliated: Yes

Abstract

The North Anatolian Fault System (NAFS) has a complex geometry and bifurcates into several branches in the eastern Marmara region. The scientific studies conducted in the area have led to numerous fault and fault segmentation interpretations. This study covers detailed lineament extraction from ASTER images and segmentation delineation by using an extensive literature review on a regional scale and focuses on the continental branches of the NAFS in the eastern Marmara region with their known off-shore extensions. A seismic source model with segmentation, fault length, width and slip rate information was prepared as a newly developed line source model for seismic hazard assessment. A probabilistic seismic hazard assessment for the Duzce city center was performed with segment-source-scenario relations and historical seismicity identification for each defined seismic line source in order to check the applicability of this model. (C) 2016 Elsevier Ltd. All rights reserved.