At around 2 a.m. on the Sunday morning of July 30, 1916, one hundred years ago today, explosions on Black Tom Island rocked New York harbor. The blasts lit the night sky and shook the earth with the force of a Richter scale 5.5 earthquake. Black Tom Island, located on the New Jersey side of the harbor, was one of the largest munitions terminals in the country, storing and shipping millions of tons of ammunition and high explosives to the French and the British, who were in the second year of what was then called the “Great War” against Germany and it allies.
The explosions that rocked the harbor were an estimated two million pounds of munitions detonating, sending bullets and shrapnel flying into the night, seriously damaging the nearby Statue of Liberty. Thousands of windows in the skyscrapers of downtown Manhattan and in Brooklyn were blown out. Windows as far north as Time Square in midtown were also shattered. In Jersey City, the outer wall of City Hall was cracked and the stained glass windows at St. Patrick’s Church were smashed. The clock tower of The Jersey Journal building in Journal Square, over a mile away, was struck by debris, stopping the clock at 2:12 a.m. Five hundred immigrants at Ellis Island were evacuated. The blasts were heard and felt for, at least, 90 miles in every direction, as far as Maryland and Connecticut. In Philadelphia, residents were woken up by the explosions.