Consider a can of soda. When the can is closed (pressurized), the soda contains dissolved carbon dioxide (CO2). When you open ...

At volcanoes like Kilauea, the bubbles are primarily CO2. The density of CO2 in a fluid inclusion is sensitive to the pressure the magma was under when the CO2 was trapped in a crystal.

Hawaiian Volcano Observatory scientists say episode 13 of the ongoing Halemaʻumaʻu eruption ended at 3:13 p.m.Tuesday.

Crowds flocked to view Hawaii’s Kilauea volcano as it entered “episode 13” of an ongoing eruption at the Halemaumau crater on Tuesday, March 11. According to the United States Geological Survey (USGS) ...

Turns out, the wind carried the glassy strands 30 miles from Kilauea to Kau. Pele’s hair is formed by gas during a volcanic eruption. When bubbles of gas near the surface of a lava flow burst, it can ...

Scientists at the Hawaiian Volcano Observatory expect the dual lava fountains within Halemaʻumaʻu crater will return soon.

ANCHORAGE, Alaska — Increased volcanic activity on Alaska's Mount Spurr volcano indicates an eruption could be coming in the next weeks or months, according to the Alaska Volcano Observatory.

The Alaska Volcano Observatory within the past week measured “significantly elevated” volcanic activity, with newly reactivated gas fissures, or fumaroles, seen at Mount Spurr’s Crater Peak.

ANCHORAGE, Alaska (AP) — A volcano near Alaska’s largest city is showing new signs of unrest, with experts saying the likelihood of an eruption at Mount Spurr in the next few weeks or months ...

Deep within Africa’s Great Rift Valley, Virunga National Park is home to some of the continent’s most active volcanoes, including the formidable Nyamulagira. This shield volcano has a long history of ...