Detailed assessments of what happened during the April 22-23 eruption of Calbuco, Chile, are now coming in from the agencies responsible for the scientific monitoring of the eruption (SERNAGEOMIN) and for the emergency response (ONEMI). The volcano is well monitored and accessible, and as a result there has been a great deal of high quality …[Read More]
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Taking the pulse of a large volcano: Mocho-Choshuenco, Chile
As the recent eruptions of Calbuco and Villarrica in southern Chile have shown, the long arcs of volcanoes that stretch around the world’s subduction zones have the potential to cause widespread disruption to lives and livelihoods, with little or no warning. Fortunately, neither of these eruptions has, so far, led to any reported loss of …[Read More]
Why Kathmandu was so vulnerable
The magnitude 7.9 earthquake that hit Nepal this morning is shocking news. For some time scientists have realised that the Kathmandu valley is one of the most dangerous places in the world, in terms of earthquake risk. A combination of high seismic activity at the front of the Tibetan plateau, poor building standards, and haphazard …[Read More]
Tragedy in the Himalaya – Largest Earthquake for 80 years in Nepal
(Updated: 27th April 2015) Almost all of you will have seen the tragic news coming from Nepal. A magnitude 7.8 earthquake struck the region between Pokhara and Kathmandu, with at least 1000 killed at the time of writing. This number is likely to go up in the coming hours and days as the true extent of the …[Read More]
Scientists share new observations from comet-chasing Rosetta Mission
Scientists working on the European Space Agency (ESA) Rosetta Mission provided an update on the comet-chaser and its lander, Philae, at the European Geosciences Union (EGU) General Assembly last week, as well as sharing new science gained from the duo so far. These new results from Rosetta were announced at a press conference on Tuesday …[Read More]
Calbuco erupts. April 22, 2015.
Volcan Calbuco, which burst into eruption on April 22nd, is one of more than 74 active volcanoes in Southern Chile that are known to have erupted during the past 10,000 years. Unlike its photogenic neighbour, Osorno, Calbuco is a rather complex and rugged volcano whose eruptive record has posed quite a challenge for Chilean geologists …[Read More]
Drinkable rocks!
When water is scarce, you’ve gotta save it, or come up with an ingenious way to get more. Some Spanish shrubs do just that, quenching their thirst with water from rocks. Sara Mynott explains where they source it… Often, in areas where water is sparse, plants use a suite of techniques to harness what limited …[Read More]
Imaggeo on Mondays: Earthquake Lake
Despite its alluring turquoise waters and rugged mountain backdrop the story behind this beautiful lake is rather more troubling. In today’s Imaggeo on Mondays, the first post since our short break from the traditional format during the General Assembly, Alexander Osadchiev writes about the shaky origins of Sarez Lake. Lake Sarez is situated in Tajikistan, …[Read More]
Presentation and data of EGU2015 workshop available online
Wolfgang Schwanghart from the Universtiy of Potsdam gave an excellent workshop on how to analyse your DEM with Matlab at the EGU last week. He posted some information for you in case of interest. Session GM11.3 of this year’s EGU hosted a workshop on TopoToolbox and bedrock river profile analysis. In case you were unable to attend …[Read More]
Announcing the winners of the EGU Photo Contest 2015!
The selection committee received over 200 photos for this year’s EGU Photo Contest, covering fields across the geosciences. Participants have been voting for their favourites throughout the week and there are three clear winners. Congratulations to – 2015’s fantastic photographers! On the occasion of the International Year of Soils, the judges also awarded an …[Read More]