The Texas City disaster was an industrial accident that occurred on April 16, 1947, in the port of Texas City, Texas, United States, located in Galveston Bay. It was the deadliest industrial accident in U.S. history and one of history's largest non-nuclear explosions.
The explosion was triggered by a mid-morning fire on board the French-registered vessel Grandcamp (docked at port), which detonated her cargo of about 2,300 short tons (2,100 metric tons) of ammonium nitrate. This started a chain reaction of fires and explosions aboard other ships and in nearby oil-storage facilities, ultimately killing at least 581 people, including all but one member of Texas City's volunteer fire department.
The disaster drew the first class-action lawsuit against the United States government, on behalf of 8,485 plaintiffs, under the 1946 Federal Tort Claims Act. The case eventually reached the Supreme Court in Dalehite v. United States.
Why this event still matters
Historical incidents shape the rules that protect people today — building codes, evacuation policy, warning systems and inspection regimes almost always trace back to a specific disaster. Studying Texas City disaster alongside current events is how preparedness improves.
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