Fagradalsfjall Volcano may not look very impressive during daytime hours, but man! – look at it at night! It’s huge!
Now picture such an eruption underwater, and imagine how much heat would pour into the ocean. That lava is probably running at 2,000 degrees Fahrenheit or more.
Remember, Iceland is a part of the Mid-Atlantic Ridge, a 40,000-mile-long chain of underwater volcanoes.
Thanks to Laurel for this video