Leirfall ved Kulstadsjøen, Vefsnfjorden 1940.

Abstract

During the building of the railway line between Mosjøen and Mo in Nordland, the nearly completed work on the ballast was destroyed by a submarine slide on August 31th, 1940. The railway line 3 km north of Mosjøen along the shore of Vefsnfjord was taken by the slide over a distance of 50 m. A de visu witness observed the ballast with a heavy lorry on it disappearing into the sea, and 5 minutes later the fall of a quay sitated 500 m farther in. Thus the slope of the Fjord bottom seems to have slid over a considerable area. This supposition was afterwards confirmed by comparing of soundings made before and after the slide took place.