Video at link (i can't post links or I get banned, dunno why). It is billed as a small landslide, but still pushed water upriver into estuaries for miles. Las Palmas anyone?


Landslide Causes Small Tidal Wave Along English Coast

An underwater landslide off the coast of Cornwall, England, caused ripples along the country’s southwest coastline on Monday. The effects of the landslide were witnessed along the coastline from Penzance to Portsmouth when the tide suddenly shifted up to 50-metres in a matter of minutes. Photographs and videos posted online by witnesses show a 3-foot wave travelling upstream through estuarine rivers

Irish weather online DOT com, or google the headline