The Alaska Volcano Observatory has raised the caution level at Kupreanof Volcano on the Alaska Peninsula, a normally quiet peak that hasn’t had a major eruption in almost 570,000 years.
The Alaska Volcano Observatory raised Kupreanof Volcano's alert level to Advisory and its aviation color code to Yellow. That ...
The Alaska Volcano Observatory raised Kupreanof Volcano's alert level to Advisory and its aviation color code to Yellow on ...
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