Natural Hazards

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]

GeoEd: A round-up of (geo)educational board games

Laura Roberts-Artal November 23, 2016

Playing the Wiapuna board game in the final class. Credit: T. Ewen and J. Seibert, 2016.

With the rise of electronic games – those played on computers, consoles and even on mobile phones – you’d be forgiven for thinking the humble board game would be slowly making its way into the history books. Nothing could be further from the truth! Sales of board games are on the up, as are cafes where you can gather to play table-top games of your choice, and board game meet ups: regular gaming g ...[Read More]

Imaggeo on Mondays: Aoraki & a round-up of the latest New Zealand earthquake news

Laura Roberts-Artal November 14, 2016

Alpenglow on Aoraki . Credit: Katrina Sauer (distributed via imaggeo.egu.eu)

On Sunday the 13th November, New Zealand’s South Island was struck by a powerful 7.8 M earthquake. Initial analysis by the United States Geological Survey (USGS) indicates that the source of the tremor was faulting on or near the boundary between the Pacific and Australia plates. A tsunami alert (no longer active) was triggered following the earthquake, with risk of tsunami waves along coastal are ...[Read More]

Imaggeo on Mondays: A look inside a thunderstorm

Mareike Schuster October 31, 2016

Mesocyclone . Credit: Mareike Schuster (distributed via imaggeo.egu.eu)

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]