Volcanoes

Earth from space A satellite image of the Galápagos Islands' La Cumbre volcano shows lava seeping from the iguana-covered mountain days into an ongoing, months-long eruption.

Antarctica's western ice sheet alone contains 138 volcanos.

A giant layer of pumice and ash found buried underwater in the Santorini caldera indicates an eruption in A.D. 726 was much bigger than previously thought.

A massive column of sulfur dioxide that was pumped out by the erupting volcano on Iceland's Reykjanes Peninsula is currently traveling across northern Europe. Scientists are concerned it could impact the ozone layer.

The submerged volcano in Iceland's Reykjanes Peninsula has erupted for the fourth time in four months. The resulting lava flow narrowly missed Grindavík but could still reach the sea and potentially unleash a toxic gas plume.

Icelandic authorities have advised residents and employees in Grindavík against staying in the town as the risk of a new eruption and of cracks opening up increases.

The Popocatépetl volcano, just outside Mexico City, has been spewing thick plumes of volcanic ash into the sky, causing flights to be grounded.

The Kikai-Akahoya eruption — the largest volcanic explosion in recorded history — ejected more than 80 cubic miles of volcanic rock and ash off the southwestern coast of Japan 7,300 years ago.

Magma accumulating beneath Svartsengi has reached levels recorded on the eve of previous volcanic eruptions and could burst out imminently, according to the Icelandic Met Office.

While tracking seismic activity on Denali, scientists stumbled upon an anomaly that could indicate the presence of magma.