Learn more about fascinating lava fountains and how high they can reach during a volcano eruption.

Two major midocean ridges are the Mid-Atlantic ... The main place to find these types of volcanoes is the "Ring of Fire" that circles the Pacific Ocean. There are more than 450 volcanoes in ...

It’s what geologists call a basaltic lava, and this affects everything from its color to its hazards. There are roughly two types of lava—and both types are, of course, runny and hot.

Why two volcanoes? I wanted to explain the difference ... the shape alone will give you some clue to the type of eruption that it produces. Steep cone? Likely sticky lavas that erupt as domes ...

Composite volcanoes are the most common type of volcano. They can have violent eruptions and can grow bigger as layers of thick lava and ash harden on top of each other. Mount Etna in Sicily ...

The two types of volcano form in different places and have very different characteristics. Ash released from shield volcanoes often builds up around the vent forming a steep, round hill known as a ...

If you erupt mafic magma, we call that lava "basalt", a term that many of you ... split without anything in-between? There are two ways it could happen. One is to melt the crust enough times ...

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 ...