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Pärvie Fault (Swedish: Pärvieförkastningen) is a large geological fault located in Northwestern Sweden. The fault is about 155 km long and is the longest known postglacial fault in the world. The fault had a major period of seismic activity following the deglaciation of Fennoscandia about 10,000 years ago. It is one of several postglacial faults in northern Sweden that remain seismically active.