"Two strong quakes were reported during the night in connection with ore mining in Malmberget. One quake was much stronger than what is allowed and led to large vibrations in the society, reports SVT."
"According to the measurement on one of them in the vicinity of the mine was moved in the house of 32 millimeters per second. The maximum limit during the night time is 3 millimeters per second."
"the mining company LKAB explains the tremors"
" We are under the soil and break the ore. We want to the vacuum that is created must put. It is about the tensions in the rock that moves. Simply put, you can say to the mountain rumble, " says Kajsa Lindmark, project manager at LKAB, to SVT."
"Lindmark said that the tremors are not dangerous, and that more can occur. The specialists will investigate the quakes next week."