historyWikipedia1917 · Halifax, Nova Scotia, Canada

A cargo ship fire in Halifax harbour caused the largest human-made explosion of its time in 1917

the gist

On the morning of 6 December 1917, the French cargo ship Mont-Blanc, loaded with high explosives, collided at low speed with the Norwegian ship Imo in Halifax harbour, Nova Scotia. The impact damaged barrels of benzol on deck, which leaked vapour that caught fire from sparks. About twenty minutes later, at 9:04 am, Mont-Blanc exploded. The blast flattened nearly everything within roughly 800 metres, including the Richmond district, and a tsunami followed. At least 1,782 people were killed and around 9,000 injured. Rescue trains arrived from across the region, and temporary shelters were built for the thousands left homeless. The explosion was the largest human-made blast of its era, and its cause was later disputed by inquiries.

so what

The Halifax Explosion shows how a minor collision in a busy port can turn catastrophic when dangerous cargo is involved. It remains a major chapter in Canadian history and changed how port safety was considered.

fun fact

The explosion's tsunami wiped out a Mi'kmaq community that had lived in the Tufts Cove area for generations.

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