Rumbling on

Glacial runoff cascades down from the caldera of Iceland's Eyjafjallajokull volcano April 21, 2010. The Icelandic volcano which grounded air traffic over Europe is still erupting, but it is spewing less ash, the meteorological office and experts said on Wednesday. Close monitoring of the neighbouring and potentially more dangerous Katla volcano was also taking place, but there have been no signs it has re-awakened, they added. REUTERS