Spatio-temporal characteristics of strong earthquakes in Turkey since the year 1971

This paper analyzes and judges the future M_S≥6.4 earthquakes in Turkey using the methods of commensurability information extraction and butterfly structure diagrams. The results show that strong signals will appear in 2015 and 2016, implying that the earthquake with M_S≥6.4 would occur by that time. Moreover, the signals in 2015 is stronger than those in 2016. In addition, this paper finds that spatial migration of the epicenters in Turkey exhibits obvious symmetry and regularity. There is one migration from east to west and return every four years with zonal symmetry axis being 38.8°N and 37.4°E. From mentioned above it is deduced that M_S≥6.4 earthquakes would occur on the eastern side of 37.4°E longitude and northern side of 38.8°N latitude, and future earthquakes maybe migrate towards NE direction.