Today marks the 100th anniversary of the Halifax Explosion, which took place when a French cargo ship laden with explosives collided with another ship in Halifax Harbour. The resulting blast killed around 2,000 people and devastated the city of Halifax, Nova Scotia; it was the largest artificial explosion of the pre-nuclear age.

Maps Mania points to a couple of interactive maps of the explosion produced by Canadian news media. CBC News’s A City Destroyed: Experience the Halifax Explosion 100 Years Later is a bit over-produced, with 360-degree video and a non-clickable map that immediately segues into a 3D environment with limited interactivity. (It also pegs one of my CPU cores.) Global News’s interactive map is more modest in scope: developed by Patrick Cain, it’s a Google Maps mashup that points to the known addresses of those killed by the explosion. (Casualties in Dartmouth, across the harbour from Halifax, aren’t mapped because the data weren’t available.)