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.