Tibet has happened, when a debris flow came down one of the river valleys. The toll is still unclear. The images show a wall of mud, tens of ...

It was June 1893, and the Fram expedition had just set off. On board the Fram were Otto Sverdrupp as captain, Fridtjof Nansen as science lead, and 11 other crew members. The goal was to reach the ...

Volcanoes often use vertical sheets of magma known as dikes to erupt, which intersect the surface as linear fissures, and these sheets of magma act as compasses of the surrounding stress field, ...

Imagine. You are being put in charge of planning for a future major volcanic eruption. All you have is an incomplete list of volcanoes in the world, some experience of past eruptions, and a few ...

Japan’s largest volcano lies hidden. It can be found, if you know where to look, by starting from the southern island of Kyushu. Find the active volcano Sakurajima. (We will come back to it later. But ...

Some fault systems in the world are well known for their destructive potential. Examples are Turkey’s North Anatolian fault and California’s San Andreas. In both cases, large events in the ...

After writing two Io articles I return to Io again my favourite moon, looking at one single lava flow field. But read Alberts and my two other Io posts first. Jupiter’s moon Io is the most ...

The Southern Peninsula (Suðurnes) is the western part of the Reykjanes Peninsula; the border is drawn to exclude Reykjavik and its suburbs. Suðurnes is the first point of call for most visitors to ...

Caldera resurgence is either exceptionally boring or unbearably interesting. The slow crawl of the Lazufre system stands in contrast with the dramatic reawakening of Kita-Ioto. Some systems however ...

This, of course, is our annual April-1 news story, not all aspects of which are equally reliable. The picture of an unshaped lava mount is a hornito from the Mount Ulu eruption. Indeed, they can form ...