Dive summary:

• A worker at Prosperity Metal Recycling in Prosperity, S.C. was moving old cars when one of the cars sparked and caught the vehicles gas tank on fire resulting in an explosion.
• The explosion then caught three other cars on fire; the flames spanned a 50 to 60 foot diameter.
• Robert Thornhill, the owner of the recycling plant, says he takes the incident as a sign that his company needs to take greater precautions to make sure gas tanks are empty in the cars they work with.

From the article:

An explosion at a recycling plant near Newberry has the owner of the plant taking a closer look at safety measures taken at the business.

Around 9 a.m. Thursday a worker at Prosperity Metal Recycling was moving old cars with machinery when one of the the cars sparked and caught the vehicles gas tank on fire causing an explosion, according to Robert Thornhill, who is the owner of the recycling plant. ...