Undersea Volcano Eruptions Caught On Video
Why Worldbuilding Stack Exchange recommends it
Worldbuilding Stack Exchange answerers point people to it as real footage of what lava and eruptions look like underwater when they need to ground fictional undersea volcanism.
Recommended by 1 people across 1 different months, 2017 to 2019.
What it is
A short Discovery news clip showing the first video of underwater volcanic eruptions and magma flows on the sea floor, captured by NOAA. Reporter James Williams interviews the lead scientist on the project about how the footage was obtained.
What people said
Recommends Gimelist · 2019-05 · Worldbuilding Stack Exchange · on “Would an deep sea lava river be feasible?”
Would an deep sea lava river be feasible? Yes, but it wouldn't look as impressive as a lava river on land. Most of Earth's volcanism actually happens underwater, in mid-ocean ridges. We can't usually see them, and they are under several kilometres of water, so they're not as famous as volcanic eruptions in populated areas like Hawaii. Here is an impressive video of how they look like. [this video] The most obvious thing you can see, these are not actually "rivers". The lava cools down instantly when it is in contact with cold water. Water is an excellent cooling material, which is why you have water in your car, and in in pretty much every industral cooling applications. It cool down lava from 12
Cites a4android · 2017-07 · Worldbuilding Stack Exchange · on “Can lava still be red hot liquid underwater?”
Hawaii has pillow lava. It moves slowly & isn't very gassy. The video looks like the lava is falling into the sea. For a video of an undersea volcanic eruption off Samoa, see here: [this video]
Cites AndyD273 · 2018-04 · Worldbuilding Stack Exchange · on “Are there any structural materials suitable for production underwater?”
Magma [LINK] [this video] Basically find an underwater volcano and tap it, releasing pressure so it doesn't explode, and direct the magma into block forms. Once it has cooled you can pull the new block out and use it for your building material. You don't have to worry about cutting and shaping stone, it will fill whatever mold you put it in. You don't have to worry about underwater furnaces or forges to get it pliable, the hard work is already done for you by the planet.