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 ...

But some refused to evacuate during the hazardous lava fountaining episode.

Large lava fountains erupted from the north and south vents Jan. 24 within Halemaʻumaʻu Crater — reaching heights of at least ...

This map shows the tephra fall associated with episode 41 of Kilauea’s episodic summit eruption, on Jan. 24. Tephra is a ...

This eruption marked the 41st episode in the series of eruptions cataloged since December 2024.

The ground beneath northern South America holds memories far older than any city or road. Locked inside ancient volcanic ...

To the east of Mount Rainier are the remains of a once-mighty Cascade volcano. In the hills outside of Naches, Washington, at the foot of Mount Rainier are the remains of a much older volcano. Join ...

Volcanic rocks are igneous rocks that solidify from lava or pyroclastic material at or near Earth’s surface, and they are central topics in petrology, volcanology, and tectonics. They are typically ...

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. With its greenish-brownish color, Erg Chech 002 (EC 002) might ...

In A Nutshell Mars was erupting while T. rex roamed Earth: A Martian volcano system was active between 64 and 50 million ...

Volcano Watch” is a weekly article and activity update written by US Geological Survey Hawaiian Volcano Observatory ...