The Halifax Explosion

     Approximately 9:04 on December 6th 1917, in Halifax, Candada, the Imo and the Mont Blanc, both carrying explosives for the war effort in Europe, brushed into one another and set off the second-largest man-made explosion history, with deference to the bombings in Japan.
The explosion and resulting tidal-wave caused the destruction of a fifth of the city and resulted in the loss of around 2,000 lives and nearly a thousand serious injuries, in one of the most tragic days in the country's history.