The Mount St. Helens eruption anniversary prompts investigation into the California earthquakes: eruption history, threat levels.

The three most common large types of volcanoes ... monitors their activity and shares the information globally. Such monitoring and alert warnings for volcanic eruptions are based on assessing ...

The Fagradalsfjall volcano, based in Iceland ... in the plates which then leads to volcanic activity. Eruptions differ because different types of magma are generated depending on how the plates ...

It hasn’t erupted for more than 250,000 years, but it nonetheless shows signs of activity similar to those ... could be useful for analyzing any type of volcano — not just zombies.

Shielded from Earth-bound eyes, the far side of the moon is home to a rare set of dormant volcanoes that changed ... suggesting a more involved type of volcanic activity than that which created ...

As of Feb. 21, 46 volcanoes have erupted; four of those occurred in the first two months of the year. More eruptions are expected this year. With the increased activity at the Axial Seamount ...