Current monitoring shows no indications of any imminent large-scale rock avalanches that could generate dangerous wave run-ups in inhabited areas.
Spontaneous small-scale slides may occur on the slopes marked in red in Figures 1 and 2. Presence near these areas – whether on land or on water – is advised against.
Summary of Monitoring Data for the Past Month
Umiammakku Nunaat:
Monitoring data continue to show activity in the surveyed mountain sectors at Umiammakku Nunaat, manifested as constant displacements and rockfall activity.
During the past month, frequent rockfalls and minor slides were observed, especially on the lower parts of the unstable slope “Umiammakku Nunaat 1”. Thawing of the upper loose surface layer—frozen throughout the winter—has increased both the frequency of rockfalls and the rate of movement. Similar conditions have been recorded in previous summers.
Kangerluarsuk:
Kangerluarsuk Kangilleq: GPS stations record a slight acceleration in movements over the past months, consistent with observations from previous years during the transition from spring to summer.
Kangerluarsuk Killeq: The coastal section of the slope continues to exhibit rapid, constant displacements and frequent rockfalls (see Figure 2). It cannot be ruled out that an entire slide package could enter the fjord from this area. Such an event is, however, assessed to be too small to pose a risk to inhabited areas, though it may cause local wave run-ups in the Kangerluarsuk region.
Registered rockfalls and displacements in the monitored mountain slopes are shown as coloured areas in Figures 1 and 2 below. Blue areas indicate persistent gradual displacement, whereas red areas mark locations with repeated rockfalls within the past month.
The next situation assessment will be published on Wednesday, 3 September 2025, due to field work in August. Should critical changes occur in the monitored areas, a notice will be issued earlier.
