When referred to as a gas, it means a volatile has transitioned into the vapor phase. The most common gases (or vapor phase volatiles) emitted at the surface are water (H2O), carbon dioxide (CO2), and ...

As another school year ends, the USGS Hawaiian Volcano Observatory welcomes two new summer interns: Kamalani Poepoe and Ruth Gale. With an ongoing eruption at the summit Kilauea, now is the perfect ...

The latest eruption within Kilauea volcano’s Halemaumau crater “ended abruptly at 10:25 a.m.” today after another brief but spectacular display of lava fountains topping 1,000 feet, Hawaiian Volcano ...

Hawaii's Kilauea volcano put on a dramatic display Sunday night, shooting lava fountains over 1,000 feet into the air. The six-hour eruption, which ended at 10:25 p.m. local time, marked the 23rd ...

An episode of lava fountaining at Kilauea ended early today after nearly six hours of continuous activity inside Halemaumau crater, according to the U.S. Geological Survey’s Hawaiian Volcano ...

In volcanoes, fluid inclusions are dominantly composed of CO 2. At magmatic temperatures (1200˚ C or 2192˚ F), the density of the CO 2 strongly depends on pressure, which is influenced by the depth of ...