The U.S. Geological Survey’s Hawaiian Volcano Observatory said Episode 42 ended at about 11:38 p.m. Sunday after nine hours ...

Fluid inclusions in volcanoes are dominantly composed of carbon dioxide. At magmatic temperatures — 2,192 degrees — the density of the carbon dioxide strongly depends on pressure, which is influenced ...

Kilauea, the restless shield volcano on Hawaii’s Big Island, has been erupting in dramatic, repeating bursts since late 2024, with lava fountains and volcanic gas-and-ash plumes rising high above the ...

The New Year’s Eve explosion at a Alamanu home that killed six people led to slew of new laws and renewed enforcement of illegal fireworks in Hawaii in 2025. Vehicles wait in wait as volunteers haul ...

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 ...