アメリカ内務省のインスタグラム(usinterior) - 3月25日 00時21分

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

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• USGS