Abstract

Recent discussions about the causes of intraplate seismicity in Scandinavia suggest that remnant stresses in the lithosphere due to stress accumulation over geological times may have minor impact on the seismicity in Fennoscandia. An alternative explanation is preferred, implying that the driving forces of plate motions are responsible for the intraplate seismicity in Scandinavia. It is suggested that stresses at the nearest plate margin (North Atlantic Ridge) are connected to intraplate stresses (Scandinavia, North America) by stress migration (diffusion), following model of stress continuation in the lithospheric plates. Thus, it may be assumed that seismic energy release along the plate margin is also correlated with intraplate seismicity taking place at intraplate boundaries, regional fracture zones or rheological zones of weakness in general.

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