This volcanic arc delineates the boundary between the Pacific and North American tectonic plates. A subduction zone, composed of the deep Aleutian Trench coupled with a landward line of volcanoes ...

Plate tectonics is the theory that Earth's outer layer is made up of plates, which have moved throughout Earth's history. The theory explains the how and why behind mountains, volcanoes ...

The Ring of Fire is home to 75% of the world's volcanoes and 90% of its earthquakes ... the Ring of Fire traces the meeting points of many tectonic plates, including the Eurasian, North American ...

Here we explain how and why the crisis developed. Iceland is a country of fire and ice, home to several volcanoes and straddling two tectonic plates. The Eyjafjallajokull volcano began erupting in ...

Layers of lava build up over time, creating volcanoes. Tectonic plates are key. They are large pieces of the Earth’s crust which can move towards, away from, or alongside one another ...

Volcanoes are one of the fiery masterpieces by nature, and some countries have more eruptions than others. From the rumbling ...

So is there reason to worry? The Ring of Fire refers to a string of volcanoes, earthquake sites and tectonic plates around the Pacific. It spreads across 40,000km (25,000 miles) from the southern ...

A newly-deployed satellite has created the most-detailed map yet of the ocean floor, finding hundreds of hills and underwater ...

Kilauea is one of six active volcanoes located in the Hawaiian Islands, which also include Mauna Loa, the world's largest ...

It has also urged the evacuation of areas within 14km of the volcano. The graphic below shows how the movement of the Earth's tectonic plates causes volcanoes to be formed, and what triggers a ...

The high number of volcanoes is down to the U.S.'s geology ... seismically active sites where the Pacific plate and other tectonic plates meet. The vast majority are located in the Aleutian ...