paxxton wrote...
+ Shepard would be vaporized on the exploding Citadel.
Even if the explosions were not in Shepard's actual sector, it would take considerably fast acting mass effect fields or emergency barriers to stop the rapid increase in pressure caused remotely as the air is sucked out of local apartments and burnt.
If that event is survived, then one must consider the potential trauma from the blast waves, as well as heat. Even remote detonations are capable of killing in these fashions so long as the energy has a medium to flow through.
Then there is the issue of loss of energy source: the base of the Citadel Tower- where Shepard was- appeared to be encapsulated by a kinetic barrier. If that fails, Shepard will be pulled appart by space. If the Tower detaches from the Citadel during the explosions, he's in a bad mess as well.
Surviving that event, based on the size and force of the explosions seems highly unlikely. That station was built out of the same material as the Relays, and save for a high energy precision strike, such material could withstand emense pressures and impacts.