X-Nico

Grand Banks of Newfoundland

On 18 November 1929, a major earthquake (known as the 1929 Grand Banks earthquake) on the southwestern part of the Grand Banks bordering the Laurentian Channel caused an underwater landslide which resulted in extensive damage to transatlantic cables and generated a rare Atlantic tsunami that struck the south coast of Newfoundland and eastern Cape Breton Island claiming 28 lives in the Burin Peninsula.

Turbidity current

Within minutes after the 1929 Grand Banks earthquake occurred off the coast of Newfoundland, transatlantic telephone cables began breaking sequentially, farther and farther downslope, away from the epicenter.

see also