1917What was the largest man-made explosion prior to the Atomic Bomb being unleashed on Hiroshima?
On the morning of December 6, 1917, Halifax, Nova Scotia, became the site of the largest man-made explosion before the atomic bombing of Hiroshima. A collision in the harbour between the French munitions ship S.S. Mont-Blanc and the Belgian relief vessel S.S. Imo led to a blast that killed over a thousand people instantly and injured thousands more, with devastation spanning both Halifax and its twin city, Dartmouth. The explosion’s force, equivalent to 2,600 tonnes of TNT, blew part of Mont-Blanc’s anchor shaft more than 2.35 miles and was heard as far away as Prince Edward Island, 200 miles distant. Halifax’s rebuilt Hydrostone neighborhood and the annual 50-foot Christmas tree sent to Boston stand today as powerful reminders of this tragedy and the resilience of its survivors.
