Akademik Veri Yönetim Sistemi
JOURNAL OF GEODYNAMICS, cilt.65, ss.199-217, 2013 (SCI-Expanded, Scopus)
The Aegean coast of Turkey is a transition zone between the Anatolian and the South Aegean microplates. The recent geophysical studies suggest the existence of additional microplates and suggest a modification of the block boundaries; the Karaburun Peninsula is most likely located on one of these boundaries. The earthquake activity in and around the peninsula was very low until the M-w 5.8 Sigacik Bay earthquake of 17 October 2005. The continuing seismicity in the Karaburun Peninsula has been monitored with the help of the dense seismology network. I re-located more than 5000 earthquakes using the double-difference algorithm and obtained fault plane solutions to understand the seismotectonic properties of the region. It is found that the micro-seismic activity has increased towards the NW of the Sigacik Bay. These observations imply the existence of a NW-SE-oriented sinistral strike-slip fault. This fault is possibly a conjugate of the dominant NE-SW-oriented dextral strike-slip faults in this transition region occupying the area between western Anatolia and the mainland of Greece, where a dominantly extensional regime prevails. Moreover, it is clear that the micro-earthquake activity is related to the Uzunkuyu Intrusive located in the middle of an approximately 40 km strike-slip Karaburun Seismic Zone between the Sigacik and Gerence bays. (C) 2012 Elsevier Ltd. All rights reserved.