Alta landslide

The Alta landslide occurred on 3 June 2020 in Alta Municipality in Finnmark county, Norway. The landslide took place in Kråkneset, a small village about 6 km southeast of the larger village of Talvik. The landslide took place on the side of a mountain and down into the Altafjorden. The landslide developed on a marine clay substrate that had originally formed in the early Holocene epoch when the area was under sea level. This substrate is thought to have turned into quick clay leading to landslide.

The landslide was filmed by a resident. There were no casualties, but several homes and cabins were lost, and a dog was rescued from the sea.

Residents had alerted the authorities about a small landslide five days before the larger event happened. Three days after the initial landslide, a second landslide destroyed part of the coastal highway.