Volcanoes

Icelandic authorities said residents and emergency responders should be ready to evacuate Grindavík at short notice after a new and ongoing eruption on the Reykjanes Peninsula.

Earth from space The massive caldera of Turkey's Mount Nemrut volcano is split in half, with one side made of solidified lava flows and the other half a deep crater lake. Covered in snow, the summit scene looks like the yin-yang symbol when viewed from above.

Scientists think Tonga's record-breaking 2022 eruption was triggered by gas building up to a "critical point" rather than by a reaction between magma and seawater as previously assumed.

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.