Ice avalanche at a Glacier!
The image catches an ice avalanche at Baker Glacier, a tributary glacier of Murchison Glacier in the Southern Alps/New Zealand. Glacier retreat over many decades has resulted in a separation of the lower glacier tongue of Baker Glaciers and its upper part that constitutes the accumulation area. Especially during summer days, ice masses of variable size fall from its accumulation area located on the steep valley slopes below the summit of Malte Brun (3198 m a.s.l.) onto the upper part of the lower glacier tongue. That lower glacier tongue of Baker Glacier is still connected to Murchison Glacier's main trunk but almost completely covered by supraglacial debris.
Stefan Winkler (distributed via imaggeo.egu.eu)