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Mine seismic network monitors Lucky Friday rock bursts
Hecla’s five level silver lead mine uses 23 seismic geophones and a surface computer to detect rock movement along a plunging ore vein. Audible pops signal potential bursts. explosions relieve stress. no major bursts recorded since system start 22 months ago. Federal inspector notes the goal of predicting bursts to protect workers.
MENTIONED IN THIS ARTICLE
Mullan
Idaho
Coeur d’Alene
Hecla Mining Co
Lucky Friday
Bemidji
Minne
Bureau of Mines
Galena
Silverton
Hecla
John Langstaff
Robert E. Riley
Spokane
Wash
Federal Mining Enforcement Safety Administration