[Maine Mariner]

Yes, I did not think crude oil would explode like that, but a crack on one of the cars can let out fumes and they explode.

[Incorrigible]

Thanks for the BLEVE info. Certainly looks like that was the case considering that the train was on fire before the derailment. Another source says it was a run-a-way train that got away from its crew while waiting for a crew change.