Here are some images from this unusual environmental event:
Taken from radarvirtuel.com, this image shows how much disorder the ash cloud is causing.
The aircraft icons around Europe show aircraft movement in the region. Note the lack of aircraft movement in the UK.
A Bombardier Q300 surveillance aircraft which has captured images of the volcanic plume breaking the cloud layer:
Credit: Icelandic Coast Guard
Volcanic ash movement is tracked by nine advisory centres worldwide. The London centre monitors ash over the UK, Iceland and the northern Atlantic Ocean:
Source: London Volcanic Ash Advisory Centre
EUMETSAT's Meteosat-9 geostationary meteorological satellite observed the ash from the volcanic eruption in Iceland. This image from three channels of Meteosat-9's Spinning Enhanced Visible and Infrared Imager (SEVERI) taken at 06:00 UTC on 15 April shows the jet stream at 300 hPa (10 kilometres high) with the volcanic cloud in black as ash is mixed with ice particles.