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: White rainbow in the Arctic
Despite heading into the long polar night – the time when the sun doesn’t shine in the globe’s most northerly latitudes and when temperatures drop and thick sheets of sea ice form -the Arctic is reported to be 20° C warmer than average for this time of year. Never has it been more important to understand the effects of climate change on Polar Regions. Mikhail Varentsov, a climate and meteor ...[Read More]
Imaggeo on Mondays: A look inside a thunderstorm
This week’s contribution to Imaggeo on Mondays is a photograph of a mesocyclone – and its rotating wall cloud – photographed by Mareike Schuster, an atmospheric scientist from Freie Universität Berlin, Germany. The picture was taken in June 2012 near Cheyenne, Wyoming in the United States during a field campaign, ROTATE, led by the Center for Severe Weather Research, based in Boulder, Colora ...[Read More]
What is in your field rucksack? Backpacking in the wilderness
Inspired by a post on Lifehacker on what your average geologist carries in their rucksack/backpack, we’ve put together a few blog posts showcasing what a range of our EGU members carry in their bags whilst in the field! This bag belongs to: Alexa Van Eaton Field Work location: Glacier Peak volcano, Washington, USA Duration of field work: 12 days What was the aim of the research?: Glacier Peak is a ...[Read More]