Limits RegistryPUBLIC RECORD
Limits RegistryJakobshavn Isbræ (Sermeq Kujalleq), one of Greenland's largest outlet glaciers, was recorded flowing at speeds of up to about 46 m per day (roughly 17 km per year) during a peak period around 2012-2013 — among the fastest sustained glacier flow speeds ever recorded, and a major single contributor to Greenland's ice loss and global sea-level rise. Its speed fluctuates significantly year to year with ocean temperature and calving-front position, and has slowed somewhat since that peak as the fjord's geometry changed.
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Jakobshavn Isbræ (Sermeq Kujalleq), one of Greenland's largest outlet glaciers, was recorded flowing at speeds of up to about 46 m per day (roughly 17 km per year) during a peak period around 2012-2013 — among the fastest sustained glacier flow speeds ever recorded, and a major single contributor to Greenland's ice loss and global sea-level rise. Its speed fluctuates significantly year to year with ocean temperature and calving-front position, and has slowed somewhat since that peak as the fjord's geometry changed.
The highest sustained ice-flow speed recorded for any major glacier, as measured by satellite or GPS tracking.
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Permanent ID limitsregistry.com/limits/LR-FASTEST-FLOWING-GLACIER
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Limits Registry. LR-FASTEST-FLOWING-GLACIER. Fastest-flowing glacier on Earth. 2026.