Update on activity
Eruption in Eyjafjallajökull, Iceland
Current events
Deflation - 20 April 2010 13:30
Latest available results from GPS stations around Eyjafjallajökull showed deflation associated with the eruption. This suggested that the volume of eruptive material which has been ejected already, relieves pressure off the volcano.
No movements associated with the Katla volcano are presently observed.
Sound blasts - 20 April 2010 12:30
Heavy sound blasts have been heard and found near Eyjafjallajökull, especially south and east of the mountain, and more clearly after wind speeds became lower.
The viscosity of the magma from Eyjafjallajökull is higher than on Fimmvörðuháls. This enhances the explosive sound effect. Shock- and soundwaves are carried long distances.
Articles < Seismicity < Icelandic Meteorological office
Latest advisory image
http://www.metoffice.gov.uk/aviation...1271763280.png