User blog comment:Omega natsu2/Chapter 362: Natsu vs. Jackal, Predictions./@comment-174.113.47.178-20131125214846/@comment-7418318-20131126173407

They do have a river right in front of them they could dive into, or Natsu, with his immunity to fire, could shield Wendy and Lucy, thus the three of them could survive, but all the people who didn't flee out of range yet (remember they started to run after Jackal took the two hostages) would die (something like this happens in my fanfict).

Or Mashima might repeat what he did with Laxus and let Natsu eat a part of the explosion directly at the source, greatly reducing the damage to the town and the number of victims, but still leaving a generous crater behind. In this case Natsu might be incapacitated from magicl overload or something with similar symptoms as the aftereffects of his eating of Etherion's energy.