In 1999, two earthquakes occurred in the Istanbul-Marmara region of Turkey and the Athens-Corinth region of Greece, and an increased risk of further events caused great concern among the earth science community. This book presents and discusses the latest results from studies of the Izmit-D?zce and Athens earthquakes and assesses the data that are available and relevant to the geology, seismology, tectonics, geodesy and other fields related to earthquake studies and to evaluate earthquake hazard potential.Proceedings of the NATO Seminar on Integration of Earth Science Research on the Turkish and Greek 1999 Earthquakes and Needs for Future Cooperative Research, held in Istanbul, Turkey from 14-17 May 2000In 1999, two earthquakes occurred in the Istanbul-Marmara region of Turkey and the Athens-Corinth region of Greece, and an increased risk of further events caused great concern among the earth science community. This book presents and discusses the latest results from studies of the Izmit-D?zce and Athens earthquakes and assesses the data that are available and relevant to the geology, seismology, tectonics, geodesy and other fields related to earthquake studies and to evaluate earthquake hazard potential.Preface. In Memoriam: Sirrn Erin?. In Memoriam: Aykut Barka. List of Contributors.Part 1: Turkish 1999 Earthquake. 1.The 17 August 1999 (G?lc?k (Kocaeli)-Arifiye (Adapazari) and 12 November 1999 D?zce earthquakes, NW Turkey: their mechanism and tectonic significance; E. G?kten, et al. 2. Imaging of the Izmit rupture from the strong motion records; M. Bouchon, et al. 3. Tectonic setting of the eastern Marmara Sea; B. Alpar, C. Yaltirak. 4. Transition of the North Anatolian Fault Zone (NAZ) in the Sea of Marmara; A. Ulugamma, E. ?zel. 5. Western extension of the north Anatolian Fault and associated structures in the Gulf of Saros, NE Aegean Sea; M.N. ?agammaatay, et al. 6. Methane in sediments of the deep Marmara Sea and its relation to local tectonic structures; Pld