Guild Wars 2

I was wondering arround in the vip area, when I saw the icon of a triggering event in the middle of the city, so I went looking and…

I tried to look for the source, but I couldn’t find anything to trigger it;
anybody has any idea about what it is?

I wonder if that is the old event, Beacons of Kryta from the August 2013 Queen Jennah’s Jubilee, peeking through. One of the runs was in that area.