Russian volcano eruption causes flight cancellations in Western Alaska.

The Shiveluch volcano on Russia's Kamchatka Peninsula erupted, sending clouds of ash over 41,700 square miles and coating nearby villages in up to 3 inches of dust. However, researchers say the eruption is not expected to deposit any ash on the ground in Alaska, though it may affect air traffic around the Aleutian Islands depending on future activity levels. The peninsula is one of the world's most concentrated areas of geothermal activity, with about 30 active volcanoes.