Within one of the hardest-to-reach places on Earth, helicopter pilot Russ Robinson spotted something in an even ...

As magma migrates to shallow depths, it causes the volcano to grow and expand, resulting in upward and outward ground displacements that can be seen on local ground deformation instruments. The ...

One of Alaska's most active volcanoes spewed ash 35,000 feet (about 10,600 meters) above sea level on Saturday (Nov. 15), prompting a warning for pilots flying near the Alaska Peninsula peak.

Along a remote, roughly 800-mile stretch of Alaska's Aleutian island chain, three volcanoes are erupting at the same time, with at least two spewing low levels of ash and steam. Image: Volcanoes erupt ...

(Reuters) - A volcano on the Alaska Peninsula erupted with little advanced warning over the weekend, spewing an ash cloud up to 20,000 feet (6,096 meters) high that prompted aviation warnings across ...

The Pavlof Volcano in Alaska is still spewing out ash one day after it erupted, with the plume now 37,000 feet high and extending 400 miles to the northeast over interior Alaska. Since the volcano ...

image: In November 2014, Alaska's most active volcano rumbled back to life. The Alaska Volcano Observatory first reported increased seismic activity and minor ash eruptions at Pavlof on Nov. 12, 2014.