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Image is of the Herðubreið tuya in northeast Iceland, formed when ice sheets covered Iceland thousands of years ago. It's not really relevant to the Grindavik situation but I think they look neat. The title also doesn't make much sense but I saw the pun and took it.

Off in Iceland, different kinds of tunnels are causing problems. Underneath the town of Grindavik in southwestern Iceland, not far from the capital of Reykjavik, tens of thousands of earthquakes are portending the movement of magma in tunnels underneath the peninsula, which could breach the surface and cause an eruption. The 4000 residents of the town have been evacuated as the magma has risen to less than a kilometer below the surface.^TRG^

Icelandic volcanism is pretty fascinating, with the country sitting on the mid-Atlantic ridge, the birthing line of new oceanic crustal rock running right down the Atlantic ocean for many thousands of kilometers, as well as a hotspot, an upwelling of mantle material of debated origin which also feeds otherwise-inexplicable volcanism in the middle of tectonic plates, like Yellowstone and Hawaii.

An additional factor here is the presence of glaciers. When a volcano erupts underneath a glacier, the melting water cools the lava rapidly, causing features usually seen in volcanoes that erupt under the sea like pillow basalts, but also unique features like tuyas, which are steep-sided but flat-topped volcanoes. The rapid melting of water can also cause glacial floods called jökulhlaups.

Icelandic volcanoes have had significant regional and even global impacts in the past. In 2010, the volcano Eyjafjallajökull, which was a volcano covered by an ice cap, erupted and the ash cloud spread across Europe, causing airline disruption for about a month which caused nearly $2 billion in total losses for airline companies - though this seems pretty quaint compared to the pandemic's impact on airlines in retrospect. Back in the 1780s, the Laki volcano killed a quarter of the Icelandic population due to sulphur dioxide causing massive crop failure and cattle death. This eruption's impacts spread to Europe and beyond, causing notable worldwide temperature drops and thus crop failures and may well have been a contributing factor to the outbreak of the French Revolution, which obviously heralded the death of the feudal order and the eventual primacy of capitalism in its place. That being said, any eruption at Grindavik is very probably not going to have any significant worldwide impacts - there are over a hundred volcanoes already in Iceland, and regular climate change is doing a great job at causing mayhem right now anyway. It's also still possible that there won't be an eruption at all, at least not in the short to medium term.

Friendly reminder: when commenting about a news event, especially something that just happened, please provide a source of some kind. While ideally this would be on nitter or archived, any source is preferable to none at all given.

If you have evidence of Israeli crimes and atrocities that you wish to preserve, there is a thread here in which to do so.

Sources on the fighting in Palestine against Israel. In general, CW for footage of battles, explosions, dead people, and so on:

UNRWA daily-ish reports on Israel's destruction and siege of Gaza and the West Bank.

English-language Palestinian Marxist-Leninist twitter account. Alt here.
English-language twitter account that collates news (and has automated posting when the person running it goes to sleep).
Arab-language twitter account with videos and images of fighting.
English-language (with some Arab retweets) Twitter account based in Lebanon. - Telegram is @IbnRiad.
English-language Palestinian Twitter account which reports on news from the Resistance Axis. - Telegram is @EyesOnSouth.
English-language Twitter account in the same group as the previous two. - Telegram here.

English-language PalestineResist telegram channel.
More telegram channels here for those interested.

Various sources that are covering the Ukraine conflict are also covering the one in Palestine, like Rybar.

The Country of the Week is Iceland! Feel free to chime in with books, essays, longform articles, even stories and anecdotes or rants. More detail here.

This week's update is here!

Here is the map of the Ukraine conflict, courtesy of Wikipedia.