Red alert at Copahue

Earlier today the authorities in Chile raised the alert lever for Copahue to level Red. This was prompted by an increase of seismic signals such as low frequency magmatic Earthquakes. A sign of the pressure rapidly increasing inside the volcano. The authorities have declared that the exclusion zone will be increased to 25 kilometers from…

Activity update around the world

Etna has had its ‘paroxysm’ #many. Every eruption is spectacular, but when they are so frequent it gets easier to focus on what is different with every eruption. Bruce Stout and Newby noted that the activity lasted much longer than previously in this series of paroxysms. Why this is, is off course a mystery, but…

Earthquakes – What’s the fuzz?

What is an earthquake? Perhaps the question should have been; when does an earthquake start? For me as a physicist what we normally perceive as an earthquake is just the boring business end of a rather fascinating process, because the earthquake actually starts far back in time. What we normally see and feel as an…