A detailed analysis of microseismicity in Samos and Kusadasi (Eastern Aegean Sea) areas

Tan O. , Papadimitriou E. E. , PABUCCU Z., Karakostas V., YORUK A., Leptokaropoulos K.

ACTA GEOPHYSICA, vol.62, no.6, pp.1283-1309, 2014 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 62 Issue: 6
  • Publication Date: 2014
  • Doi Number: 10.2478/s11600-013-0194-1
  • Title of Journal : ACTA GEOPHYSICA
  • Page Numbers: pp.1283-1309


A detailed investigation of microseismicity and fault plane solutions are used to determine the current tectonic activity of the prominent zone of seismicity near Samos Island and Kusadasi Bay. The activation of fault populations in this complex strike-slip and normal faulting system was investigated by using several thousand accurate earthquake locations obtained by applying a double-difference location method and waveform cross-correlation, appropriate for areas with relatively small seismogenic structures. The fault plane solutions, determined by both moment tensor waveform inversions and P-wave first motion polarities, reveal a clear NS trending extension direction, for strike slip, oblique normal and normal faults. The geometry of each segment is quite simple and indicates planar dislocations gently dipping with an average dip of 40-45A degrees, maintaining a constant dip through the entire seismogenic layer, down to 15 km depth.