Katla is renowned as Iceland's most hazardous volcano due to catastrophic jkulhlaup, tephra (material produced by eruption) and lightning hazards. Heavy tephra fall has been recorded approximately 20 cm thick up to 30 km from the eruption site. Also, lightning is known to impact the region within 30 40 km of the eruption site and livestock have been killed as a consequence.
My research revealed that local residents are most fearful of tephra and lightning, as they cause significant impacts on important farming communities in southern Iceland. Stories passed down from older generations who had survived the 1918 Katla eruption described the devastating conditions to family and friends. Residents reported that during the height of the eruption they could not see their hand if they held it 30 cm in front of them.
Deanne Bird is a physical geographer currently based at Macquarie University's Risk Frontiers Natural Hazard Research Centre in Sydney. This is an edited version of an article that was first published by the Australian Science Media Centre.
Since the 2006 evacuation exercise, Icelandic officials have devoted tremendous effort to improve emergency response for volcanic eruptions in southern Iceland. Following increased seismicity in Eyjafjallajkull during February 2010, the Icelandic Civil Protection Office in conjunction with the regional Chief of Police organised emergency meetings with scientists, local police, rescue teams and local residents. My colleague, Gudrun Gisladottir, was asked to present our research and contribute to the ongoing developments to emergency response strategies at these meetings.
Iceland volcano emergency plan
Public response during the evacuations on 21 March and 14 April indicate that these efforts have paid off. Family, friends, neighbours, members of local New Balance 411 Womens
rescue teams and government officials are all providing support to the communities affected by the eruption.
was only 3,000 cubic metres per second. Despite its size, this flood still caused major damage.
Given the recent events in Eyjafjallajkull and high levels of seismicity and crustal deformation around Katla during the past decade, researchers believe that Katla New Balance Football Boots All Black is in an agitated state and an eruption, without prolonged precursory signals, should be expected in the near future.
in 1612 and 1821 1823), Katla has erupted at least 20 times with catastrophic impacts. The historic record of Katla indicates eruptions twice a century, with the last confirmed eruption in 1918.
Like Eyjafjallajkull, Katla is a subglacial volcano. Due to the 400 m of ice covering the caldera, Katla is capable of producing catastrophic jkulhlaup (glacial outburst flooding). The jkulhlaup that occurred on 14 April, from the Eyjafjallajkull eruption, was tiny compared to that which can be generated from a Katla eruption. A worst case scenario from Katla would be a flood with a discharge rate in excess of 300,000 cubic metres per second. In comparison, early reports estimated that the jkulhlaup generated on 14 April from the Eyjafjallajkull eruption New Balance Limited Edition
Iceland's most hazardous volcano
I HAVE RECENTLY RETURNED from a four year study in southern Iceland looking at hazard and risk mitigation and emergency response arrangements. Through this research I have gained extensive knowledge of the eruptive history of Eyjafjallajkull and the neighbouring volcano Katla.
In response to increased seismic activity in Katla since 1999, evacuation and emergency response plans were devised by the Icelandic Civil Protection Office, scientists, local police and rescue teams. These plans, which included response to the Eyjafjallajkull volcano, were tested in a full scale evacuation exercise in 2006 and the Icelandic Civil Protection Office invited me to observe and participate. Since then, I have been working closely with emergency management agencies and the local communities to improve emergency response procedures.
Although there is significant concern about the current volcanic eruption, there is an even greater concern that a second volcano, Katla might also erupt. Katla eruptions have been known to coincide with Eyjafjallajkull eruptions in the past.
´╗┐Iceland risks further catastrophic eruption
In comparison to the two historic eruptions of Eyjafjallajkull (which occurred New Balance Gold Sneakers
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