Postglacial seismic activity along the Isovaara–Riikonkumpu fault complex

Analysis of airborne LiDAR-based digital elevation models (DEMs), trenching of Quaternary deposits, and diamond drilling through faulted bedrock was conducted to characterize the geological structure and full slip profiles of the Isovaara–Riikonkumpu postglacial fault (PGF) complex in northern Finland. The PGF systems are recognized from LiDAR DEMs as a complex of surface ruptures striking SW–NE, cutting through late-Weichselian till, and associated with several postglacial landslides within 10km.