Seismic activity
Parts of Garpenberg mine closed through 2026 after quakes
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Following a series of seismic events at the Garpenberg mine in Hedemora, Boliden announced that large parts of the mine will remain closed throughout 2026. The company expects to lose 70 percent of planned production and incur a 400 million kronor loss in the first quarter.
A new strong quake shook Boliden's mine in Garpenberg on Wednesday afternoon, hours before the company held an information meeting with locals. Residents demand more and faster information following the weekend collapse that injured four people.
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Following the March 14 collapse at Boliden's Garpenberg mine that lightly injured four people, new tremors were recorded Tuesday evening and Wednesday, including one of magnitude 1.9. Seismologist Björn Lund calls the activity 'highly unusual.' Inspections have begun with production paused.