Thanks for the update and explanations. I think the cartoon of the magma chamber is helpful but somewhat misleading. It seems to show an empty space above the magma during the eruption. It should show the chamber roof moving downward, as shown by the GPS measurements. I understand that is more difficult to animate but it would show the chamber behavior more accurately.
Thank you for the update. I wonder if the next eruption will be more to the north, where a path has been created. Would be great for Grindavik, but not so much for Vogar and the main road to the airport.
At the northern end of the lava field is a small valley whereby the lava field has pooled (Maybe around 5 - 10 meters deep ) this is why the lava field did not advance north (My thoughts)
From what I've seen over the last week or so, even if I'd take magma inflow into account, there had to be at least 40 million cubic meters of magma in the magma chamber. It's because most of the lava field built up in the first day of the eruption, at least 15 square kilometers got covered in lava very quickly. That's about 15 million square meters. And if the average thickness is 2 meters then about 30 million erupted in less than 24 hours. Correct me if I'm wrong on that.
It's definitely interesting to think that over 80mil. m3 have been erupted. It's true that it suggests more magma was present in the chamber. Would be really nice to get opinions from our experts. Could it be gas related, which changes the volume properties, a new batch of magma entering from the deeper reservoir at the time of the intrusion, or, as you say, just more over all magma in the chamber than we estimated.
@@Hliarmenn Yeah, 85 to 102 million cubic meters of lava at the surface means about 42.5 to 51 million cubic meters of magma deep underground. You probably know this, but magma underground is under tremendous pressure. So much so that when it rises to the surface it expands by a factor of two. So 10 million cubic meters of magma in the magma chamber becomes 20 million cubic meters of lava at the surface.
Extremely informative video have been watching icelandic eruptions now for 3 years or more and makes for compelling watching every time I like the way the icelandic people are so calm and collected your all hero's in my book including isak and Gylfi. It takes true grit and guts to go out in all kinds of weather and film the action....all I can offer is good luck stay safe and good job from the uk 🇬🇧 to Iceland 🇮🇸
I don't think anybody had "Using Lava to clean up old ammunition" on their bingo card this year. Really wonder how much longer we are going to get influx into the Sill and Dike. Either way, its amazing we get to see what the first settlers saw when they arrived in Iceland. The Sagas often talk about erupting volcanos that are essentially right outside the city, and now we get to experience them ourselves. It's a great time to be a geologist and a Historian.
Yeah, hahaha. Our coast guards needed a little help. I often think about it as well. The Reykjanes eruptions back in the 11 hundreds are talked about a lot in old stories. It is even thought that they caused Snorri Sturluson, one of our best writers, to write even more as all of his cows died due to gas, which left him with a lot more skin😂.
@@Hliarmenn We give so much credit to Pliny the Younger as one of Volcanology's most important figures, but we so often forget those writers that aren't Pliny. The local Native American legends of where I am from in the USA original have stories about Mt St Helens erupting before the arrival of Europeans. (they wrote some of the stuff about St Helens as a Jealous lover to the nearby mt hood.) Here is to Snorri!
