Most volcanoes form at the boundaries of Earth's tectonic plates, which are huge slabs of crust and upper mantle that fit together like puzzle pieces. Think of these plates as massive rafts floating ...

Learn how Mount Etna stands apart from most volcanoes, having been formed by pockets of magma held in Earth's upper mantle.

Located in Sicily, Mount Etna is Europe’s most active volcano. Yet its origin remains largely enigmatic, as no existing ...

Exactly when and how plate tectonics started, however, is a matter of debate. Now, in a study published March 19 in the journal Science, rock samples from Western Australia hint that the Earth’s crust ...

Volcanoes are Earth’s geologic architects. They’ve created more than 80 percent of our planet’s surface, laying the foundation that has allowed life to thrive. Their explosive force crafts mountains ...

A new study carried out on the floor of Pacific Ocean provides the most detailed view yet of how the earth’s mantle flows beneath the ocean’s tectonic plates. The findings, published in the journal ...

A new model of Yellowstone’s magma system suggests it is fueled by melts from the shallow mantle, guided by tectonic forces, ...

ST. LOUIS -- In a paper published in Proceedings of the National Academy of Sciences (PNAS) Saint Louis University researchers report new information about conditions that can cause the earth's ...

LISBON, April 6 (Reuters) - Volcano-tectonic tremors, which indicate the movement of magma, were recorded on the earthquake-hit mid-Atlantic Azores island of Sao Jorge for the first time since a ...

In the desolate landscape of western Australia, a rocky outcrop that formed more than three billion years ago is giving geologists an unprecedented look at the early churnings of our planet. These ...