Blog Post Image: Some volcanoes ‘scream’ at ever-higher pitches until they blow their tops

Published at 500 × 332 in Some volcanoes ‘scream’ at ever-higher pitches until they blow their tops

Redoubt Volcano’s active lava dome as it appeared on May 8, 2009. The volcano is in the Aleutian Range about 110 miles south-southwest of Anchorage, Alaska. Image credit: Chris Waythomas, Alaska Volcano Observatory

Summit crater, active lava dome, and steam plume of Redoubt volcano, May 8, 2009. View is toward the southeast.

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