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As Iceland's eruption goes on, lava might fill the valley and overflow to the next one

Fri, 26 Mar 2021, 06:53
06:53 AM | BY: T
View of the ongoing eruption in Iceland this morning (image: RUV webcam)
View of the ongoing eruption in Iceland this morning (image: RUV webcam)
Model of the lava fill after 12 days of eruption (image: Ragnar Heiðar Þrastarson / twitter)
Model of the lava fill after 12 days of eruption (image: Ragnar Heiðar Þrastarson / twitter)
Model of the lava fill after 17 days of eruption (image: Ragnar Heiðar Þrastarson / twitter)
Model of the lava fill after 17 days of eruption (image: Ragnar Heiðar Þrastarson / twitter)
The eruption is now almost a week old and shows little signs of stopping anytime soon. Activity is now concentrated at two adjacent vents of a growing cone in the central part of the original eruptive fissure. They are filled with spectacularly boiling (degassing) lava that flows away to form thin flows that overlap on a growing lava field, that slowly but surely is filling the Geldingadalur valley.
The question is of course, how long will it take to fill the valley and get lava reach its lowest pass to the next valley.
Scientists have modeled this: if the current eruption rate of 5.8 cubic meters continues at such rate for a total of 12 days (another 5-6 days from now), it will have filled the valley and start overflowing into the neighboring valley to the SW.
Speculations circulate already that if this eruption continues for a very long time (years), we might see the formation of a new shield volcano. It is impossible to predict this, especially such a short time after the start, but intriguing nevertheless. In any case, we would be now watching the birth phase of a potential shield volcano right now!

Previous news

Wed, 24 Mar 2021, 19:01

Reykjanes eruption continues in its fourth day, scientists find evidence of magma came quickly from very deep

Weather conditions can be difficult on Iceland in March - view of the ongoing eruption this afternoon (RUV webcam)
The eruption continues with little changes, but it has provided scientists already with very interesting results that might provide unique insights into a type of eruption that hasn't been observed on Iceland in a long time. ... Read all
Tue, 23 Mar 2021, 20:30

Iceland eruption continues steadily, smaller vent at side of main cone becoming more active

View of the ongoing eruption in Iceland this evening (image: RUV webcam)
The eruption continues with little changes and stead lava output. In the past hours, the hornito (small cone-shaped vent) at the side of the main vent has been becoming more active, seen left in the image of the live camera. ... Read all
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Fissure swarm 385 m / 1263 ft
Reykjanes Peninsula, Iceland, 63.89°N / -22.27°W
Current status: normal or dormant (1 out of 5) Fagradalsfjall volcano eruptions:
2022 (Aug), 2021
Less than few million years ago (Pleistocene)
Typical eruption style
fissure eruptions, lava flows
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