Burträsk Fault ( Swedish: Burträskförkastningen) is a large geological fault located in Northern Sweden. The fault had a major period of seismic activity following the deglaciation of Fennoscandia about 10,000 years ago. [1] On surface the fault can be observed in the form of a fault scarp, but the fault is longer than the scarp implies. [1] Likely extends northeast below sea level into the Bothnian Bay. [1] The Burträsk fault is one of several postglacial faults in northern Sweden that remain seismically active. Currently, it is the most seismically active area in the whole of Sweden. [2]
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