Spilling Thought: Ten years ago, Augustine #volcano in Alaska swelled, rumbled and erupted. A gigantic cloud of ash rose above the mountain and two lava flows crawled down its sides. The #eruption resulted in #ash falling throughout south-central #Alaska and disrupted air traffic over the state. Historically, #AugustineVolcano has been the most active volcano in Alaska’s #CookInlet region with recent eruptions in 1976, 1986 and 2006. Photo by Cyrus Read, @USGS. #tbt by usinterior