
On an unseasonably warm January day in 1919, the North End of Boston suffered a terrible--and bizarre--disaster. A giant tank storing molasses exploded shortly before 1 p.m. on January 15, resulting in the deaths of twenty one people and injuring another 150.
How did this strange disaster come to be?

Two days before the explosion, a shipment had come in almost completely filled the tank. On the day of the disaster, the bottom of the tank split open with a roar. Waves of molasses went in every direction, estimated at 8 to 15 feet high. A few sources even claim the wall of molasses reached a height of 30 feet. Some workers and nearby people drowned, others were crushed when toppling buildings fell on them.

It's estimated that the flood traveled at a rate of 35 miles per hour--much faster than one might suspect possible for molasses in January. But the day was warm and the contents of the tank under pressure, creating a perfect molasses storm.
Rescue and clean-up were, as one could well imagine, highly difficult given the sticky nature of the disaster. It took weeks before the neighborhood finally got rid of the spilled molasses. The aftermath continued as approximately 125 lawsuits were filed against the company responsible for the tank. USIA initially claimed that the tank had been blown up by anarchists or temperance advocates. Their arguments did not hold up against the class action suit, and USIA's resulting payout of $600,000 can be calculated at over $6 million in today's currency rate.
Prohibition came into effect a year after the Boston molasses disaster, thus bringing to an end the need to store such huge quantities of molasses for the production of rum. But some say that on warm days in the North End, the scent of molasses still hangs in the air.
