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Looking into the crater, the camera captured hourly photographs of volcanic dome growth during the 2004-2008 eruption. The station also captured the advance of the west arm of Crater Glacier as it moved northeast around the 1980-1986 and 2004-2008 lava domes, joined with the east arm of the glacier, and pushed northward onto the crater floor.
Ice calving, also known as glacier calving or iceberg calving, is the breaking of ice chunks from the edge of a glacier. [1] It is a form of ice ablation or ice disruption . It is the sudden release and breaking away of a mass of ice from a glacier , iceberg , ice front , ice shelf , or crevasse .
The William Glacier in Antarctica partially collapsed in the same week as Antarctica's hottest recorded day at 65ºF. It lasted for several minutes and stretched half a mile.
At an elevation of 2800 metres, the lower end of a glacier snapped off. The break-off had a width of about 80 metres and a height of 25 metres. The detached volume was estimated to be 65,000 ± 10,000 cubic metres. [6] The seismic energy released was comparable to an earthquake of 0.6 M. [1]
The Patagonian glacier drops large amounts of ice about every four years. The last rupture was in 2012. Partial breaks occurred in February, indicating a large collapse could happen soon.
Northern edge of Iceberg B-15A in the Ross Sea, Antarctica, 29 January 2001. Iceberg B-15 was the largest recorded iceberg by area. [Note 1] It measured around 295 by 37 kilometres (159 by 20 nautical miles), with a surface area of 11,000 square kilometres (3,200 square nautical miles), about the size of the island of Jamaica.
In 2018 or 2019, a large chunk almost 14 km × 8 km (9 miles × 5 miles) broke off and was named A-68B, with the mother iceberg now being A-68A. [13] On 6 February 2020, A-68A began moving into open waters. [14] On 23 April 2020, a chunk measuring about 175 sq. km. (70 sq. mi.) broke off the iceberg and was named A-68C. [15]
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