eruption

Imaggeo on Mondays: A lava layer cake

Laura Roberts-Artal May 29, 2017

A lava layer cake flowing . Credit: Timothée Duguet (distributed via imaggeo.egu.eu)

Brekkuselslækur, a small river, carves its way across Iceland’s ancient volcanic landscape. At Hengifoss, Iceland’s third-highest waterfall, it tumbles fiercely down thick, dark layers of lavas erupted from volcanoes some 18 to 2.58 million years ago, during a period of geological time known as the Tertiary. Eruptions are rarely continuous; during hiatuses in the extrusion of lavas, ash is able to ...[Read More]

Imaggeo on Mondays: In the belly of the beast

Alexandra Kushnir April 17, 2017

Conducting research inside a volcanic crater is a pretty amazing scientific opportunity, but calling that crater home for a week might just be a volcanologist’s dream come true, as Alexandra postdoctoral researcher at the Institut de Physique du Globe de Strasbourg, describes in this week’s Imaggeo on Mondays. This picture was taken from inside the crater of Mount St Helens, a stratovolcano ...[Read More]

Imaggeo on Mondays: “Vancouver! Vancouver! This is it!”

Laura Roberts-Artal December 12, 2016

Mount St Helen's, Washington, seen from Johnston Ridge.

Mount St Helen's, Washington. Credit: Andy Smedley (distributed via imaggeo.egu.eu)

On May 18th 1980 Mount St Helens (an active stratovolcano of the Cascades located in the North West US), erupted explosively following a magnitude 5.1 earthquake. The quake triggered a devastating landslide which swept away the volcano’s northern flank – in what is the largest debris avalanche recorded on Earth to date. Removal of a section of the edifice depressurised the volcano’s magmatic ...[Read More]

Imaggeo on Mondays: A Bubbling Cauldron

Jamie Farquharson August 1, 2016

Bubbling Cauldron . Credit: Jamie Farquharson (distributed via imaggeo.egu.eu)

Despite being a natural hazard which requires careful management, there is no doubt that there is something awe inspiring about volcanic eruptions. To see an erupting volcano up close, even fly through the plume, is the thing of dreams. That’s exactly what Jamie Farquharson, a researcher at Université de Strasbourg (France) managed to do during the eruption of the Icelandic volcano Bárðarbunga. R ...[Read More]