Strictly speaking, the "curse" had to relate to an event in a filming location between the time of filming and the time of airing, and be significant enough to raise questions about whether the cast and crews (especially including the locals) were affected by the event.
Of that there have been very few such events; the hurricane season of 2005, Katrina, and the Great Tsunami of Christmas 2004, seem to be the only ones that have directly impacted in this way.