Detection of Tectonic and Crustal Deformation using GNSS Data Processing: The Case of PPGnet

Aitolo-Akarnania prefecture, western Greece, is an area with strong earthquakes and large active fault systems. The most prominent are the Katouna sinistral strike slip Trichonis Lake normal system. Their proximity to cities, lack of detailed information on their seismogenic potential, calls for multiparametric research. Since 2013, area’s crustal deformation has been monitored by a dense GNSS Network (PPGNet), consisting five stations, equipped Leica Septentrio receivers. objective this network define rate across these two main Data recorded using sampling frequencies, 1 Hz 10Hz, producing hourly daily files. Daily data processed Bernese Processing Software final orbits International Service. Double-difference solution computed phase measurements from PPGNet complemented four stations Athens’ National Observatory six METRICA network. First results show NNE movement at PVOG station 12 mm/y similar RETS about 9 mm/y. This means that system, located between depicts 3 KTCH RGNI move eastwards velocity 5 due Katouna-Stamna provided important in area, i.e. rates have attributed specific comparison links broader geodynamic models now possible we expect, later will provide more image associated seismic hazard Aitolo-Akarnania. Doi: 10.28991/cej-2021-03091633 Full Text: PDF