Question: Doggerland was an area now beneath the southern North Sea that connected Great Britain to continental Europe during and after the last glacial period, it was probably a rich habitat with human habitation in the Mesolithic period, although rising sea levels gradually reduced it to low-lying islands before its final submergence, possibly following a tsunami caused by the Storegga Slide, The three Storegga Slides are considered to be amongst the largest known ?
Sentence (from "Storegga Slide"): The collapse involved an estimated 290 km length of coastal shelf, with a total volume of 3500 km3 of debris, which caused a very large tsunami in the North Atlantic Ocean.
Relevant evidence: No