High Resolution Earthquake Relocation using Teleseismic Waveforms in Izmir, Western Turkey

Western Turkey is seismically active and several new faults have been identified using data from a temporary seismic deployment. Because of the large population in Izmir, these faults are important for earthquake hazard assessment. In this research, we relocated several moderate earthquakes from 1992 to 2005 in the region using their differential arrival times at teleseismic distances. Using waveform cross-correlation, we obtained accurate P and S wave arrivals at 76 stations which gave good azimuthal coverage. We then used singular value decomposition to determine the relative location of these events. The preliminary results show that these events are located along a SW-NE line that coincides with a newly discovered fault near Izmir,Turkey.