Airplane passengers are being warned to prepare for chaos over fears that an Icelandic volcano could erupt and send an ash cloud towards Britain at anytime. The Icelandic Met Office has issued an alert after finding earthquake activity within the caldera of the ice-covered Katla volcano was at four times higher than normal. Meteorologists in the country said they

had noticed heightened earthquake activity at Katla since mid-June, although this appeared to be in decline – until Monday. Then there were two magnitude 4.5 earthquakes in the caldera – the largest in Katla since 1977 – and more than 100 earthquakes recorded after that. The warning follows the April 2010 eruption of the Eyjafjallajokull volcano in Iceland which saw thousands of Britons stranded abroad by the ash cloud. READ MORE