The 1946 Greenville propane explosion occurred on 19 November 1946, at the Ideal Laundry laundromat in Greenville, South Carolina. A tank containing around 3,500 US gallons (13 m3) of propane exploded around 6 PM, after leaking vapors were ignited by the boilers in the basement. The blast, which killed 6 people and injured over 150, was felt as far away as Gaffney, 50 miles to the northeast.