HR: 1330h
AN: G43B-05    [Abstracts]
TI: Investigation of Earthquakes in Turkey Using GIS
AU: * Garagon Dogru, A
EM: garagon@boun.edu.tr
AF: Bogazici University, Kandilli Observatory and Earthquake Research Institute Geodesy Department Cengelkoy, Istanbul, 34680 Turkey
AU: Ozener, H
EM: ozener@boun.edu.tr
AF: Bogazici University, Kandilli Observatory and Earthquake Research Institute Geodesy Department Cengelkoy, Istanbul, 34680 Turkey
AB: There are three main active faults in Turkey: the North Anatolian Fault (NAF), the Northeast Anatolian Fault (NEAF) and the East Anatolian Fault (EAF). NAF is one of the most active seismic regions over the world, runs along the northern part of Turkey about 1500 km, from the Aegean to the Karliova triple junction in the eastern Turkey. It has been the source of numerous large earthquakes throughout the history. Geographic Information Systems (GIS) are increasingly used to visualize elements associated with seismicity. It enables an efficient interactive exploration and spatial analysis of attributed geographical data. The database of this study consists of the earthquakes that occurred in Turkey since 1970 and the active faults in Turkey, which may cause the huge earthquakes in the future. Seismicity data were obtained from National Earthquake Monitoring Center of Kandilli Observatory and Earthquake Research Institute of Bogazici University. These data were in a text file format with each epicenter identified by latitude and longitude coordinates. This file also includes date, time, depth, magnitude and location information of the earthquakes. These data were then projected onto the map of the faults using GIS software and knowing the projection of the fault data set. The databases and analysis results are visualized by using the GIS software.
DE: 7200 SEISMOLOGY
DE: 7230 Seismicity and seismotectonics
DE: 7299 General or miscellaneous
SC: Geodesy [G]
MN: 2005 Joint Assembly