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Iceland’s Silfra Fissure is located within the heart of Thingvellir National Park (Þingvellir) where the North American and Eurasian tectonic plates have been moving apart at the rate of 2 centimeters per year.
In 1789, a major earthquake took place in the Thingvellir area and opened up several fissures. Only Silfra Fissure was filled with the glacial meltwater from the nearby Langjokull glacier, this is why it got the name “Silfra,” meaning silvery.
