Visibility of the Strands of the North Anatolien Fault in the Topography of Marmara Sea - Bathymetric Surveys

The Visibility of the Strands of the North Anatolien Fault in the Topography of Marmara Sea – Bathymetric and Seismic Surveys The Bosporus is a strait that connects the Black Sea with the Sea of Marmara of northwest Turkey. The Black Sea is in the North and the Sea of Marmara is in the South of bosphorus. The Bosporus (Turkish Boğaziçi) Strait is considered to be the boundary between Europe and Asia, and the large city of İstanbul. Turkey is located on both sides of the southern end of the strait. The Gulf of Izmit is the narrow gulf extending to the east from the Sea of Marmara. The city of Izmit at the end of the gulf was heavily damaged by a large magnitude 7.4 earthquake on August 17, 1999, often called the Izmit earthquake, that killed at least 17,000 people. The Izmit earthquake ruptured a long section of the North Anatolian Fault system continuing under the Gulf of Izmit. Another strand of the North Anatolian Fault system is visible as a linear feature in the topography south of Iznik Lake. The recent Bathymetric and Seismic surveys show that the North Anatolian Fault system extends beneath and has formed the Sea of Marmara, in addition to the Gulf of Izmit and Iznik Lake.