On July 30, 1916, Black Tom island in Jersey City served as the primary departure point for American-made munitions bound for Allied forces fighting in World War I. Despite official U. S.
neutrality, American factories were churning out tons of artillery shells, gunpowder, and TNT for Britain, France, and Russia. Sensing a critical vulnerability, covert German agents infiltrated the island rail yard and set fire to barges crammed with high explosives. The resulting blast was equivalent to a 5.
0 magnitude earthquake. Shrapnel pocked the Statue of Liberty, windows shattered across Manhattan, and shockwaves rattled buildings as far away as Philadelphia. Beyond the immediate chaos and destruction, the sabotage delivered a devastating blow to the global Allied supply chain.
Over two million pounds of war materiel vanished in a single instant, destroying hundreds of freight cars and completely obliterating the rail infrastructure connecting East Coast factories to Atlantic transport ships. The sudden disappearance of this massive supply node sent shockwaves across the ocean. With the choke point utterly destroyed and regional rail lines paralyzed by gridlock, Atlantic convoy departures ground to a halt.
For two critical weeks during the height of the Battle of the Somme, Allied commanders faced an acute shortage of high-explosive artillery shells, forcing batteries into strict ammunition rationing while logistical officers desperately attempted to clear backlogs and reroute freight.