The fireworks were not merely stored at 1070 Revere Avenue — they were being manufactured there. Investigators discovered that a clandestine fireworks factory had been operating inside the building, which had housed about 125 small light-industrial and craft businesses. Thomas Cuyos, 28, had built a machine to mass-produce M-80 firecrackers behind locked doors disguised as a print-forms company. When the fireworks ignited, the resulting explosion was catastrophic. The blast leveled the structure and damaged or destroyed adjacent buildings. Eight people died in the explosion and fire; twenty more were injured. The shock wave shattered windows and was felt throughout the district.

The Bayview-Hunters Point district had long been one of San Francisco's most underserved communities. Originally developed around the Hunters Point Naval Shipyard during World War II, the neighborhood attracted African American workers from the South who built ships and serviced the Pacific fleet. After the war, the shipyard's closure left the community with contaminated land, limited economic opportunity, and a persistent sense of being forgotten by the rest of the city. The fireworks disaster reinforced that feeling. An illegal storage operation of this scale suggested regulatory neglect -- the kind of oversight failure that was less likely to occur in wealthier neighborhoods.

The disaster prompted investigations into how such a large quantity of fireworks could be stored illegally in a residential area without detection. Fire safety inspections, zoning enforcement, and the regulation of pyrotechnics storage all came under scrutiny. For the Bayview community, the explosion was one more insult in a long history of environmental and safety injustices. The rebuilt block would eventually see the same pressures of gentrification that reshaped much of southeastern San Francisco in the decades that followed. The explosion itself faded from collective memory faster than the neighborhood's grievances, which had deeper roots and longer fuses.