Assessment - 05 May 2010 20:50
Increased seismicity suggests that new material is intruding from deep below Eyjafjallajökull and latest GPS-observations suggest inflation. So far, GPS-signals are not large.
Plume at 5.5-6.5 km height (a.s.l.) according to IMO's weather radar.
Due to mild weather and snowmelt, increase in discharge was noticed in Markarfljót peaking at midnight. Discharge from Gígjökull seems to be decreasing and oscillations in water temperature at the old Markarfljóts bridge relate to air temperature. Pulses of meltwater from Gígjökull are unnoticeable.
Lava flows to the north and spreads at 500 m a.s.l. The lava tongue is about 200 m wide and lava channels that join at the tongue are about 30-60 m wide. The lava channels gets wider every day.
There are no signs that the eruption is about to end.