One of the largest explosion craters in Germany is in the borough of Prüm. It was caused by a huge explosion in 1949, in which an ammunition depot exploded due to unknown causes and large parts of the town were destroyed.2
P. W. Cooper. Explosives Engineering. Wiley-VCH. ISBN 0-471-18636-8 /wiki/ISBN_(identifier) ↩
"Landesarchivverwaltung: 15.07.0". 3 December 2013. Archived from the original on 3 December 2013. https://web.archive.org/web/20131203041313/http://www.landeshauptarchiv.de/index.php?id=504 ↩