Giant sinkhole opened up in Solikamsk, Russia [1]

Giant sinkhole formed in Russian Perm region in the Ural Mountains shortly after a potash mine near town of Solikamsk flooded. The sinkhole, stretching 20 by 30 metres, was found 3.5 km east of the Solikamsk-2 potash mine in Russia's Perm region. The sinkhole was first discovered by Uralkali's Solikamsk-2 mine workers on November 18, 2014. It is located on an abandoned mine and does not pose a direct threat to residents of Solikamsk town.The town of Solikamsk is located almost entirely above the Solikamsk-1 mine, according to the town's mayor, Sergey Devyatkov. Saint-Petersburg Geology Institute is deployed to investigate the reason for the brine inflow and its relation to the sinkhole.