Society, economy & sport

Halifax explosion

6 December 1917

The Halifax explosion occurred when the French cargo ship Mont-Blanc, loaded with munitions, collided with the Norwegian vessel Imo in the narrow waters of Halifax Harbour, during the First World War. A fire broke out on the Mont-Blanc, and some time later it detonated in one of the largest accidental non-nuclear explosions in history. The blast and the resulting tsunami destroyed much of the north end of the city, killing around two thousand people and injuring many thousands more. A blizzard the next day hindered relief efforts, but help came from across Canada and from Boston. Nova Scotia thanks Boston each year by sending a Christmas tree, which stands in the city during the holiday season.

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