Steam and volcanic gas rising from the summit crater of 2,519-m-high (8,264 ft) Pavlof Volcano on the Alaska Peninsula. Pavlof is one of the most active of Alaska's volcanoes with nearly 40 historical eruptions. Photograph by T. Miller, U.S. Geological Survey, November, 1973.

Pavlof 火山位於阿拉斯加半島上, 標高2519公尺, 是阿拉斯加最活躍的火山中之一個活火山, 歷史上有40次噴發記錄,照片中的火山口正徐徐的冒出水蒸氣與火山氣體

照片出處: 阿拉斯加火山觀測所(Alaska Volcano Observatory)

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