Alaska Volcano Update
 

The 5,029-foot volcano on Atka Island erupted briefly this week, sending ash and steam to about 8,000 feet, according to the Alaska Volcano Observatory.

Two other restless volcanoes -- Mount Spurr west of Anchorage and Mount Veniaminof on the Alaska Peninsula -- remained relatively quiet on Thursday, said Chris Waythomas, a scientist with the observatory.

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