Home > Natural Disasters > Iceland’s Katla Volcano Showing Possible Sign of an Impending Eruption, ‘Should Prompt Extensive High-Level Contingency Planning Across Europe’

Iceland’s Katla Volcano Showing Possible Sign of an Impending Eruption, ‘Should Prompt Extensive High-Level Contingency Planning Across Europe’


By Andy Hooper, The Telegraph – “This month marks the second anniversary of the eruption of Eyjafjallajökull that left millions stranded across Europe, and cost airlines an estimated €150 million a day for six days. But alarmingly, there are signs of high activity beneath the much larger, neighbouring Katla caldera in Iceland – a possible sign of an impending eruption. This should prompt extensive high-level contingency planning across Europe, as Katla has the potential to be much more damaging than Eyjafjallajökull.

Since Iceland was settled in the ninth century, Katla has erupted on average every 60 years, but has not had a significant eruption since 1918. Ominously, eruptions of Eyjafjallajökull in 1821-23 and 1612 were followed within months by eruptions of Katla. Judged by the historical calendar, an eruption is overdue.

Last July, a flood of water burst from beneath the ice cap on top of Katla, washing away a bridge. This indicates that an extra pulse of heat reached the base of the ice. Since then, there have been erratic movements of the surface of the volcano, measured by precise GPS instruments, and bursts of high earthquake activity beneath Katla’s caldera. These observations imply that magma has risen to shallower depths.

Katla’s eruption in 1918 produced five times as much ash as the 2010 Eyjafjallajökull one. A major eruption could result in large parts of Iceland being flooded as snow and ice melted; significant poisoning of Icelandic agriculture; destruction of property; and, of course, the grounding of aircraft across Europe.

If enough material is ejected it could even have a cooling effect on the global climate for a few years. A precedent for that would be the 1783-84 eruption from the fissure of Laki, which is part of the same volcanic system, Grímsvötn, that erupted last year.” Read more.

Flashback: New Icelandic Volcano Eruption Could Have Global Impact – “Hundreds of metres under one of Iceland’s largest glaciers there are signs of a looming volcanic eruption that could be one of the most powerful the country has seen in almost a century. Mighty Katla, with its 10km (6.2 mile) crater, has the potential to cause catastrophic flooding as it melts the frozen surface of its caldera and sends billions of gallons of water surging through Iceland’s east coast and into the Atlantic Ocean. ‘There has been a great deal of seismic activity,’ says Ford Cochran, the National Geographic’s expert on Iceland.” Read more.

Categories: Natural Disasters
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