Site of the explosion translates, center of the map, I believe, to Eugene's Wine Bar (I don't speak or read German). Again, the early reports say it was a gas explosion. However, a nearby festival has been evacuated.
Hopefully there is nothing to see here.
ETA: Sky News also reporting "Eugene's Wine Bar" as the site.
http://news.sky.com/story/one-dead-a...urant-10511772