Coseismic Ground Displacement after the Mw6.2 Earthquake in NW Croatia Determined from Sentinel-1 and GNSS CORS Data

At the very end of year 2020, on 29 December, a hazardous earthquake Mw = 6.2 hit area Petrinja and its surroundings, in NW Croatia. The was felt across 400 km, leaving an inconceivable damage vicinity epicenter, devastated towns ruined lives. In order to map spreading waves determine coseismic ground displacement after mainshock, we have analyzed open satellite radar images Sentinel-1 GNSS data from nearest CORS station related along with seismic faults. this paper, addressed mapped linear surface ruptures detected by SAR interferometry. results show vertical extent ?12 cm southern up 22 north-western part wide struck impact, epicenter. Subsidence uplift range ±5 over wider affected indicate spatial impact made earthquake. 30 West 40 East has been identified considering intersection Pokupsko strike-slip fault system zone Pannonian basin. Accordingly, obtained matching 5 south-easting shift ?3 subsidence Sisak CROPOS station, addressing tectonic blocks movement activated complex system. compared geology confirm existence two main faults; faults interpret occurrence secondary post-seismic events observed area.