Scientists compare volcanic cones on Earth and Mars to explain how gas-rich magma forms scoria cones. Spacecraft observations and Earth analog sites provide evidence of similar eruptive processes.

The alert level for Mauna Loa is currently “normal”; we expect to see additional changes such as increased seismicity or gas emissions before any future eruption. Even during quiet times, keeping a ...

Echinus Geyser in Yellowstone National Park, a rare acidic geyser and the largest in the world, has recently been observed ...

Volcanic activity in northern Ethiopia's long-dormant Hayli Gubbi volcano subsided Tuesday, days after an eruption that left a trail of destruction in nearby villages and caused flight cancellations ...

A series of lava fountains building -a cone perched on the crater rim … sounds like the ongoing eruption in Halema‘uma‘u at the summit of Kilauea, but this description could also fit the Kilauea Iki ...

Kilauea volcano put on another spectacular show Friday night with lava fountaining in Halemaumau crater reaching new heights for the latest eruption, which began nearly 10 months ago. Scientists with ...

When you think of the United States, images of sprawling cities and vast landscapes might come to mind, but not the hidden and ever-present geological threat: volcanoes. While you might associate ...

A volcano in Russia's far east on Wednesday spewed ash several kilometers into the sky, authorities said, putting on a spectacular display in its latest eruption. A series of mild eruptions at the ...

Rare 'limnic eruptions' can unleash deadly, invisible gas clouds from deep lakes, as seen in Cameroon's 1986 Lake Nyos ...