The three Storegga Slides count among the largest recorded landslides. They occurred under water on the edge of Norway's continental shelf (Storegga is Norwegian for "the Great Edge") in the Norwegian Sea, 100 km north west of the Møre coast, where an area the size of Iceland slid, causing a megatsunami in the North Atlantic Ocean. The latest incident occurred around 6100 BC. In Scotland, traces of this tsunami have been recorded. This entry refers to the geological term landslide. ... The Norwegian Sea (Norwegian: Norskehavet) is part of the North Atlantic Ocean northwest of Norway, located between the North Sea (i. ... Møre is a diocese in the Church of Norway which geographically consists of Møre og Romsdal county, Norway, and has its bishop residing, and cathedral located, in the county administrative center, Molde. ... Megatsunami is a term used by the popular media to describe a form of displacement wave, related to tsunamis in name only. ... For other uses, see Atlantic (disambiguation) The Atlantic Ocean is Earths second-largest ocean, covering approximately one-fifth of its surface. ... (8th millennium BC – 7th millennium BC – 6th millennium BC – other millennia) Events circa 7000 BC – Agriculture and settlement at Mehrgarh in South Asia circa 6500 BC – English Channel formed circa 6100 BC – The Storegga Slide, causing a megatsunami in the Norwegian Sea circa 6000 BC – Neolithic Age in Korea circa... Scotland (Alba in Scottish Gaelic) is a country in northwest Europe and a constituent nation of the United Kingdom. ...

As part of the activities preparing the Ormen Lange natural gas field, the incident has been thoroughly investigated. One conclusion was that the slide was caused by material built up during the previous ice age, and that a reoccurrence would only be possible after a new ice age. Ormen Lange, the largest natural gas field under development in Norwegian continental shelf, lies 100 km northwest of Kristiansund where seabed depths vary between 800 and 1,100 metres. ... Natural gas rig Oil and natural gas are produced by the same geological process: anaerobic decay of organic matter deep under the Earths surface. ... Variations in CO2, temperature and dust from the Vostok ice core over the last 400 000 years For the animated movie, see Ice Age (movie). ...

However, facts and arguments supporting such conclusion was never made public. Earlier it was concluded that the development of the Ormen Lange gas field would not significantly increase the risk of triggering a new slide.

New slides, potentially larger than Denmark in area, and 400m to 800m high, will trigger mega tsunamis and will be devastating for the coast areas around tke North Sea and the Norwegian Sea.

External links

• The BGS deep-tow boomer meets the Storegga Slide
• The Storegga slide investigation, including animations