Doggerland was submerged by a tsunami formed in what ocean?
Doggerland 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 flooded by rising sea levels around 6,500–6,200 BCE. Geological surveys have suggested that it stretched from Britain's east coast to the Netherlands and the western coasts of Germany and the peninsula of Jutland. 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.
1947 Gisborne earthquakes and tsunami The 1947 Gisborne earthquakes and tsunami occurred east of Gisborne, offshore New Zealand's North Island. Both earthquakes are estimated to have measured at most 7.1 on the moment magnitude scale. The first earthquake, which struck offshore Poverty Bay on 26 March is estimated to have been between 7–7.1 , and generated a tsunami with a maximum measured run up height of 10 metres. The tsunami caused widespread damage along the north-east coast of the North Island, but was not observed outside of New Zealand. Seven weeks later, a second earthquake struck offshore Tolaga Bay on 17 May, and was estimated to have been between 6.9–7.1 M . It also generated a tsunami, with a maximum measured run up height of 6 metres. Despite occurring at low tide and being less powerful the second time around, the tsunami caused small amounts of damage along the east coast and is noted for washing away construction materials ironically being used to repair damage from the previous tsunami.