Submarine volcanoes add to ocean soundscape

Most volcanoes erupt beneath the ocean, but scientists know little about them compared to what they know about volcanoes that eject their lava on dry land. Gabrielle Tepp of the Alaska Volcano Observatory and the U.S. Geological ...

Alaska volcano erupts again, sends ash cloud over Aleutians

An Alaska volcano that has erupted periodically since mid-December sent up its biggest cloud to date late Tuesday night and into Wednesday morning, prompting warnings to airliners and a major U.S. fishing port in the Aleutian ...

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