Much of the sand and gravel that the town of Etne is built on was laid down at the end of the Ice Age and is evidence of melting glaciers and roaring meltwater rivers. The uncompacted material in the big terraces leave their unmistakeable mark on the wide elongated valleys.
During the latter half of the 1900s the big natural river deltas on Westland disappeared. Until the 1980s there was still a small, but significant remnant of the original river delta from the Etneelva river, but today most of this, too, is industrial land.
In Skånevik there are marks left from the ice edge that advanced during the thousand-year cold spell (Younger Dryas) that marked the end of the Ice Age roughly 11 500 years ago. The glacier first proceeded out into Åkra Fjordand and around Vannes and thereafter sent an arm in toward Skånevik. Here, the glacier lay down an end moraine up against the mountainside.
On Sunday the 29th of January, 1989, at 17:38 o'clock, Etna shook. The earthquake, with its epicentre ca. 9 kilometres south of Etne centre, had a strength of 4.2 on the Richters scale. This could be felt over large parts of West Land, especially in the areas around Åkra, Etne, Hardanger Fjord and Sauda Fjord. The earthquake was the largest that has ever been measured in Hordaland.
The permanently-protected Mosneselva River, with its meltwater from Folgefonna, runs out into Åkra Fjord by the roadless and uninhabited Mosnes. Those who once lived here were forced to surrender to the ravages of Nature. In the autumn of 1962 there was a flood so great that the people were driven from their farms.