Well it might not be a good idea to fly.
An Icelandic volcano that could have a more devastating impact than the one that paralysed air traffic last year may erupt at any moment, experts have warned.
Seismologists are nervously watching rumblings beneath Katla, a volcano on the southern edge of the north Atlantic island nation, which could mean an eruption is imminent.
Katla is a much bigger volcano than nearby Eyjafjallajokul, the 2010 eruption of which cost airlines £1.27billion after ash grounded flights across Europe.
Some facts and figures.
The crater of the volcano has a diameter of 10 km and the volcano normally erupts every 40 - 80 years. The last eruption took place in 1918, meaning scientists monitor the volcano very carefully. Since 930, 16 eruptions have been documented. The Laki craters and the Eldgjá are part of the same volcanic system, so it can be regarded as one of the most powerful in the world.
And you might find THIS useful if you have to fly