http://news.yahoo.com/s/ap/20050802/...da_plane_crash
From unconfirmed reports elsewhere, I'm going to guess that thankfully a great majority of the passengers survived, though I'm not completely optomistic yet. From what I gather, plane landed in bad thunderstorm, struck by lightning, lost all braking and engine power, overran runway, plunged into ravine, and split apart.
I believe the explosion may have occured a few minutes after it came to rest, presumably from the O2 tanks igniting. Either way, I'm hoping that most if not all of the passengers survived. The pilot and copilot are confirmed alive and well, so that'll help the investigation afterwards.
[edit:] confirmed now that all passengers and crew survived; that's extremely good news given the extreme circumstances.