| Venue: | Building 509 Edgewood Arsenal |
| Location: | Harford County, Maryland, United States |
| Coordinates: | 39.3943°N -76.2933°W |
| Type: | Explosion |
| Patrons: | --> |
| Organizers: | --> |
| Reported Deaths: | 12 |
| Reported Injuries: | >50 |
| Blank Data: | --> |
| Blank1 Data: | --> |
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The 1945 Edgewood Arsenal explosion killed twelve munitions workers and injured more than fifty on May 25, 1945. Building 509 at Edgewood Arsenal in Harford County, Maryland was a production facility for the assembly of phosphorus igniter assemblies for incendiary bombs, employing a female staff of about 135 assemblers. Nine workers, of whom eight were African-American, were killed in the initial blast, and three more died of their injuries.[1] [2] [3]