Alaskan glacier is moving 100 TIMES faster than normal due to changes in mass between the top and bottom of the 39-mile-long river of ice
The Muldrow Glacier is experiencing a surge that is moving the sheet of ice 100 times faster than normal
Scientists say it has advanced up to 60 feet a day, which is causing fractures and deformities in the glacier
Muldrow historically experiences a surge every 50 years, with the last only moving it 50 miles
Experts say this event was caused by changes in the mass between the top and bottom of the glacier