January 1756, Lisbon Earthquake, Losses by Cork Merchants of Beef, Pork, Beef in the amount of £4,300 (c€2 million) and the formation of the Barley Cove Sand Dunes, West Cork.
It is believed that the sand dunes at Barley Cove adn other areas on the West Cork and Kerry Coast were caused by a Tsunami caused by the earthquake.
The entire city of Lisbon was destroyed by the earthquake and it was rebuilt in the grid pattern.
Courtesy JCHAS, John T. Collins.
http://en.wikipedia.org/wiki/1755_Lisbon_earthquake
http://safalra.com/other/historical-uk-inflation-price-conversion/
Rebuilt Lisbon:
West Cork History 