Stress transfer in the Storegga area, offshore mid-Norway

Stress changes following different scenario earthquakes along the selected faults in the area are modeled and computed for a number of cases. Using the Coulomb failure criterion we demonstrate the possibility of large earthquakes triggering multiple ruptures along neighbouring fault segments. The combined effect of the co-seismic slip and strong ground shaking due to a large earthquake (M∼7) accompanied by the stress transfer on the optimally oriented normal fault-planes which are analogous to the slide-scar, may have played an important role for the triggering of the Storegga submarine slide.