Kamchatka: 4 volcanoes on Orange alert level
Kamchatkan and Northern Kuriles Volcanic Activity KVERT released in their report number 22-11 dated April 21, 2011 at 21:50 UTC (April 22, 2011, 09:50 KST) alert level status of Kamchatka's volcanoes. The Aviation Color Codes of Kizimen, Sheveluch, Karymsky and…