Katla volcano (Iceland): earthquake yesterday

On 29 July the Iceland Met Office (IMO) reported that a glacial outburst flood (jökulhlaup) in the Múlakvísl river, SE of Katla, had begun, and a M 3 earthquake along with a few smaller earthquakes were located in the N part of the caldera. Nearby seismic stations detected tremor possibly linked to the flood, though a subglacial volcanic component was not ruled out. The Aviation Color Code was raised to Yellow, the second highest level on a four-color scale. ... Read all

Over the past days, seismic activity under the large ice-covered volcano has increased. It seems likely that at least some of this activity is caused by injections of new magma into the volcano's system, as some earthquakes were detected at depths between 10 and up to 25 km where no normal tectonic activity that could be triggering the earthquakes is expected. ... Read all