The Shiveluch volcano on the Russian peninsula of Kamchatka has become active again. Dense clouds of smoke and ash have been visible above the volcano since early on Sunday morning, Russian state-run TASS news agency reported. The first lava flows have also been observed. A column of ash shot up to 8 kilometres above sea level. Airlines were instructed to avoid the region. As Kamchatka is only sparsely populated, scientists did not foresee any problems for residents. A light ash cloud has fallen in the settlement of Ust-Kamchatsk. “But the daily routine in the settlement was not disturbed by i…