Katla is very active and is one of Iceland’s most active & dangerous volcanoes. infamous for its large eruptions happening on average every 50-100 year, causing devastating glacial floods
An earthquake of magnitude 4,3 took place in the Katla volcano in South Iceland end of January 2017. It originated in the middle of the caldera underneath Myrdalsjokull glacier. Scientists believe that the increased seismic activity over the last months indicates the Katla is more likely to erupt now than the years before.
A group of scientists, members of the police, the Icelandic Met Office and the University of Iceland had a meeting yesterday to discuss this, along with Barðarbunga volcano, and the importance of increased surveillance. Katla is one of Iceland’s largest and active volcanoes with over twenty eruptions documented since the year 930
Although most historical eruptions have taken place from fissures inside the caldera, the Eldgjá fissure system, which extends about 60 km to the NE from the current ice margin towards Grímsvötn volcano, has been the source of major Holocene eruptions. An eruption from the Eldgjá fissure system about 934 AD produced a voluminous lava flow of about 18 cu km, one of the world’s largest known Holocene lava flows. Katla has been the source of frequent subglacial basaltic explosive eruptions that have been among the largest tephra-producers in Iceland during historical time and has produced dacitic explosive eruptions during the Holocene.