1937 Fox vault fire
1937 CE.
Shown on the map at 40.855°, -74.047°.
A major fire occurred in a 20th Century-Fox film-storage facility in Little Ferry, New Jersey, United States, on July 9, 1937. Flammable nitrate film had previously contributed to several fires in film-industry laboratories, studios and vaults, although the precise causes were often unknown. In Little Ferry, gasses produced by decaying film, combined with high temperatures and inadequate ventilation, resulted in spontaneous combustion. One death and two injuries resulted from the fire, which also destroyed all of the archived film in the vaults, resulting in the loss of most of the silent films produced by the Fox Film Corporation before 1932. Also destroyed were negatives from several other studios. The fire brought attention to the potential for decaying nitrate film to spontaneously ignite and changed the focus of film-preservation efforts to include a greater focus on fire safety.
Text from the Wikipedia article 1937 Fox vault fire, licensed CC BY-SA 4.0.