Originally posted by 11andrew34
Yeah a large area that is being called "doggerland" now was above sea level. Ireland wasn't an Island completely until ~12,000 or 10,000 BCE, and Britain wasn't until ~5000 BCE. During those years there were a series of devastating tsunamis from landslides in modern Norway. Loose boulders and smaller rocks and loose land in general and such from retreating glaciers would pile up and sometimes fall into the North Sea en masse.
It still is along the East coast of England. Scarborough and Filey in particular have suffered massive coastal erosion in the past couple of decades. All that coast is lined with material pushed there by glacial movements. In the flash floods a few years ago, huge chunks of land fell into the sea at Filey. And in Scarborough, grand houses that have seen their once huge gardens consumed by the sea are now waiting for it to take the houses too. It is a continuation of the same process that sank Doggerbank as I understand it.