3D strain monitoring of onshore active faults at the eastern end of the Gulf of Corinth (Greece)

An active fault exposed in the region of the Gulf of Corinth was selected to be directly monitored in terms of fault displacements. Taking into consideration the local geological conditions and the recent earthquake activity, the selected monitoring site was located on a segment of the Pisia-Shinos active fault exposed in the Perachora peninsula. The monitoring instrument consists of a 3D Moire extensometer (TM71 gauge). The first results after a monitoring period of only 6 months indicate that it is possible, with such equipment, to detect sub-millimetre displacements along active faults.