Around 25,000 earthquakes have registered on Icelandic Met Office’s equipment since August 29. The eruption is one of the largest in the world. All in all 39 quakes over 5.0 have been recorded, most of them in the rim of the Bárðarbunga crater. The eruption itself is to the north of the sub-glacial volcano which makes a lot of difference, because that means the ash and flood danger is limited.
On Monday a quake of magnitude 5.5 occurred, the second biggest from to beginning of the eruption.
Volcanologist Ármann Höskuldsson says that the eruption is not only big but interesting in other respects as well: “The flow of magma to the surface is extensive and the lava fountains are going high up in the air. The flow of poisonous gas is also unusually high. We have to go back to the Lakagígar eruption to find anything similar”.
Ármann says he has no idea how long the eruption will last. „It has already lasted longer than I anticipated“.