Lava has filled most of the summit crater at Alaska’s Great Sitkin volcano and pushed out into the valleys below it, the U.S. Geological Survey’s Alaska Volcano Observatory said in a hazard notice ...

The tsunami threat around the Pacific from a huge undersea volcanic eruption began to recede Sunday, while the extent of damage to Tonga remained unclear.

Add Yahoo as a preferred source to see more of our stories on Google. This screenshot shows a portion of a high-resolution WorldView-3 satellite image of the active fumaroles (steam vents) at Mount ...

Pre-eruptive volatiles and magma storage depth for the 2018 eruption at Mount Veniaminof, Alaska Pre-eruptive volatiles and magma storage depth for the 2018 eruption at Mount Veniaminof, Alaska ...

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. “It’s a ...