-Hagafellsjökull hold the 2017 record in the terminus variations dataset of
the Iceland Glaciological Society, retreating by 100–
200 m in a year. The
Breiðamerkurjökull outlet glacier of the Vatnajökull ice cap retreats even
faster, where it calves into Jökulsárlón lagoon, with an annual rate of retreat
in recent years up to
200–300 m.The Hoffellsjökull
outlet glacier in Hornafjörður has retreated
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