Based on recent data from the monitoring, it can be stated that there is no immediate danger of major rock avalanches or subsequent dangerous waves at the inhabited areas in the Uummannaq Fjord system. However, there is a high rockfall activity and probability of minor rock avalanche events at the unstable rock slopes, indicated in red color in figures 1 and 2. It is not advisable to stay in the vicinity of those unstable slopes.
Summary of monitoring data collected since the beginning of July 2024
The monitoring data collected since the beginning of July 2024 document constant displacements of varying magnitudes at the unstable rock slopes in Umiammakku Nunaat and Kangerluarsuk.
The observed displacements are shown as colored areas on the maps below: The blue areas mark recorded displacements, while the red colored areas indicate areas with rockfalls and smaller slide events since the beginning of July 2024.
Both in Kangerluarsuk and Umiammakku Nunaat 3, movement rates have been slightly increased during the late summer months, and similarly, the frequency of rockfalls in the lower parts has been greater. The same condition was observed in the late summer period of 2023.
Geologists from the landslide monitoring group conducted fieldwork in Umiammakku Nunaat and Kangerluarsuk in August 2024. The fieldwork consisted of maintenance and upgrading of monitoring systems, drone surveys and seismic surveys in the unstable rock slopes, and initial regional screening studies in the Uummannaq fjord system.
Analysis of the data collected in the fieldwork will take place this autumn and in the coming winter months.
The next assessment will be published on Wednesday, November 7, 2024. However, if critical changes occur in the monitored rock faces, this will be announced earlier.
