Large Liner sank with one torpedo?

[MercurySeven]

Originally Posted by cardiff

yes it is lusitania, WW1. An investigation found no munitions but the torpedo ignited years of coal dust build up that caused a secondary explosion that foundered the ship. It listed quite a bit and resulted in the lifeboats being unusable resulting in large loss of life.

Actually later on quite a bit of ammunition was found around the wreckage. However, those were small caliber rounds for rifles and machineguns which probably didn't cause the secondary explosion. Larger ammunition (eg for artillery) was not found. The coal dust story is one possible explanation for the Lusitanias tragedy but as of now no team of experts could really determine what sank her in the end.