When magma moves into the rift zone of a Hawaiian volcano, there is understandably a lot of excitement and apprehension. How ...

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 ...

In Pompeii, many victims of the volcano were found in the streets encased in this layer. Around 4 p.m., the magma in the volcano’s conduit interacted with groundwater, causing the magma to break ...

Mount Spurr is a stratovolcano with layers of lava and ash located roughly 80 miles west of Anchorage, making it visible from Anchorage and the Kenai Peninsula. The volcano is expected to erupt in the ...