How did young volcanoes on Mars form? This is what a recent study published in the journal Geology hopes to address as a team of scientists investigated the complex geological processes responsible ...

An eruption at Mount Etna in July 2021. (Salvatore Allegra Photography/Moment/Getty Images) Mount Etna is more than half a million years old, but this massive stratovolcano in Sicily still has plenty ...

Volcanic eruptions are significant geologic hazards. Underwater volcanoes are challenging to study, yet they play an integral role in marine geology and may cause destructive tsunamis that can ...

This video shows the volcanic landscape of Poás Volcano, Costa Rica, where a large active crater sits beside dense green forest under thick clouds. Inside the crater is a bright green acidic lake ...

A “fascinating” eruption is approaching as a sleeping giant underwater volcano stirs with seismic activity near America’s west coast. The seismic activity of Axial Seamount, a submerged volcano ...

Scientists say they've discovered a 400-mile chain of extinct and fossilized volcanoes beneath southern China. The volcanoes, the researchers claim, were likely formed when two major tectonic plates ...

When the plate sinks into the mantle it melts to form magma. The pressure of the magma builds up beneath the Earth's surface. The magma escapes through weaknesses in the rock and rises up through a ...

While the USGS scientists learned plenty about volcanism in El Salvador during this trip, it also provided key insights to ...