Newfoundland Tsunami…

“Like a bolt out o’ hell..”

newfoundland tsunmi3On 18 November 1929 a tsunami struck Newfoundland’s Burin Peninsula and caused considerable loss of life and property. Giant waves hit the coast at 40 km/hr, flooding dozens of communities and washing entire homes out to sea.

The earthquake was centred on the edge of the Grand Banks of Newfoundland, about 400 kilometres (250 mi) south of the island. It was felt as far away as New York and Montreal. The quake, along two faults 250 kilometres (160 mi) south of the Burin Peninsula, triggered a large submarine landslide (200 km3 or 48 cu mi). It snapped 12 submarine transatlantic telegraph cables and led to a tsunami that arrived in three waves, each 3 to 4 metres (12 – 13 feet) high, that struck the coast at 105 km/h (65 mph) about three hours after the earthquake occurred. The waves travelled at speeds up to 129 km/h (80 mph) at the epicentre; they were recorded as far away as Portugal.

newfoundland tsunamiThe tsunami destroyed many south coastal communities on the Burin Peninsula, killing 27 or 28 people and leaving 10,000 more homeless. All means of communication were cut off by the destruction, and relief efforts were further hampered by a blizzard that struck the day after. It took more than three days before the SS Meigle responded to an SOS signal with doctors, nurses, blankets, and food. Donations from across Newfoundland, Canada, the United States and United Kingdom totalled $250,000.

There was never an accurate official list of the victims produced by any branch of the Newfoundland government. In the report entitled “Loss of Life,” the Honourable Dr. Harris Munden Mosdell, Chairman of the Board of Health Burin West, reported: “The loss of life through the tidal wave totals twenty-seven. Twenty-five deaths were due directly to the upheaval. Two other deaths occurred subsequently and were due to shock and exposure.” Later research attributed an additional death to the earthquake.[4]

In 1952, American scientists from Columbia University put together the pieces of the sequentially broken cables that led to the discovery of the landslide and the first documentation of a turbidity current. Scientists are looking at layers of sand believed to be deposited by other tsunamis in an effort to determine the occurrence rates of large earthquakes. One sand layer, thought to be deposited by the 1929 tsunami, at Taylor’s Bay was found 13 cm below the turf line. The occurrences of large tsunamis, such as the one in 1929, are dependent upon deposition of sediments offshore because it was the landslide that made the tsunami so powerful. The deposition of such a large volume of sediments will take a while before there is enough to form an underwater landslide the same size as that in 1929.

*Source: Wikipedia

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My list of of interesting books about Canada (to date).

 

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