Proceedings of the 12th International INQUA meeting on paleoseismology, active tectonic and archaeoseismology

Fig. 3: a) Overview of a large landslide along the eastern side of Eyjafjörður North Iceland. Black line indicates the scarp, blue lines outline the landslide extent. b) Side view of the landslide. The road (Grenivikurvegur) was built over the landslide deposit. c) Cross section of land slide deposit. d) Close up of course grained landslide deposits. R E S U LT S / D I S C U S S I O N Several new landslide locations were mapped within the DL region. The preliminary data in this study shows a clear correlation between earthquakes and post glacial landslides within the Troll Peninsula. This then provides insight into the location of concealed active faults. Prior analysis suggests that landslide distribution is not related to glacial debutressing, patterns or lithology. Therefore, the distance from earthquakes (a proxy for active faulting) could be the main control on landslide occurrence in the study location. For utilization of earthquakes as a proxy for locating active faults several criteria are required to be fulfilled including: (1) records of historical or ongoing regional seismicity, (2) groups of landslides, (3) landslides located near active faulting, (4) slope stability conditions where ground failure is induced by shaking, (5) landslides are of similar age, and (6) landslide events have large areas.