The website said: “The new eruption is located near Geldingadalir, around the centre of the recent dike intrusion of magma that has formed under the peninsula over the recent weeks.
“It started very quietly with almost no seismic activity when finally, a fissure opened, reaching around 500 to 700m length.
“The monitoring Icelandic Met Office (IMO) first became aware of the eruption from local reports of visible glow in the area about half an hour after the onset of activity.
According to the Icelandic Meteorological Office, the eruption spewed jets of molten rock up to 100m into the sky.
Rannveig Gudmundsdottir, who lives in Grindavik, only five miles from the eruption, said the lava bathed the night sky with a red glow.
source: express.co.uk