An active volcano near Alaska's most populated city could be on the brink of eruption, according to scientists who are constantly monitoring a potential threat.

Experts have identified ashy layers at multiple Bolivian sites as tephra, a material produced by volcanic eruptions, that rained down on settlements near Lake Titicaca sometime between 400CE and ...

The USGS Hawaiian Volcano Observatory spearheads Volcano Awareness Month each January on the Island of Hawaii. This year, in ...

It's the seventh eruption since just before Christmas at one of the world's most active volcanoes, with lava shooting hundreds of metres into the sky. Take a look at these incredible pictures of ...

Volcanic activity in Iceland, monitored by the Iceland Metrological Office, has hazards similar to those in Hawaii: earthquakes, opening of new fissure systems, lava flows, tephra fall ...

MANILA, Philippines — Taal Volcano in Batangas had a phreatic eruption Wednesday morning, the Philippine Institute of Volcanology and Seismology (Phivolcs) reported. In its latest update ...

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Hawaiian Volcano Observatory collecting tephra that fell on Crater Rim Drive on January 15. The area is closed to the public within Hawai'i Volcanoes National Park. Viewers can hear the tinkling ...

To track progress, a full orange dot in the below images indicates completed steps and a Tephra volcano symbol denotes steps currently in progress. However, despite these compelling points ...

The tallest visible peak is Snohomish County’s resident volcano, Glacier Peak ... These big eruptions spread tephra east into Montana, Alberta and Saskatchewan, but lahars have also reached ...