The eruption split a 1km chasm in the iceAn Icelandic volcano, dormant for 200 years, has erupted, ripping a 1km-long fissure in a field of ice.The volcano near Eyjafjallajoekull glacier began to erupt just after midnight, sending lava a hundred metres high.Icelandic airspace has been closed, flights diverted and roads closed. The eruption was about 120km (75 miles) east of the capital, Reykjavik. What volcanic scientists fear is the fact that this eruption could trigger an eruption of Katla, one of the most dangerous volcanic systems in the world.Eruptive events in Eyjafjallajökull are often followed by a Katla eruption. The...