In 2006 a depression formed above the glacier terminus. Tangentially oriented crevasses were reminiscent of "ice cauldrons" above subglacial volcanoes on Vatnajökull, Iceland. The ice was sinking above a subglacial cavity caused by the meltwater stream (QTVR pano, 2.5 MB). Pano wider than 180°, requires scrolling to the right.