Update on the eruption in Sundhnúkagíga on 19. December 2023

This article is written on 19. December 2023 at 02:35 UTC. Information in this article can go outdated quickly and without warning.

• The fissure is at last measurement around 4000 meters long (4 km) according to the news.
• The volcano that is erupting is Svartsengi volcano. On some maps this is shown as Reykjanes volcano.
• This is the largest eruption on the Reykjanes peninsula  so far.
• The lava flow is mostly to the east, a way from infrastructure and roads. This is mostly, but can change without warning.
• There’s a lot of gas pollution from this eruption. This gas is dangerous to people and animals.
• The lava flow from the fissure is around 100m3/sec to 200m3/sec.
• The fissure has started to form crates. This is going to continue to create craters as the eruption goes on.
• There’s a ongoing risk that the eruption fissure might extend to the south towards Grindavík. If that actually happens is impossible to know.

I am going to write next update sometimes later today (19. December 2023) when I have new information and more is known about this eruption.