An FAE bomb or something similar would simulate a nuclear explosion pretty convincingly. If you want proof, there was a recent gas line explosion in Texas which did a pretty good similacra of a mini-nuke. 1000 ft blast radius. Another one that comes to mind was an explosion in a plant that manufactures the solid fuel for missiles. That one looked like someone set off a 5k nuke and registered 4.7 on the seismograph.
__________________
Into terror!, Into valour!
Charge ahead! No! Never turn
Yes, it's into the fire we fly
And the devil will burn!
- Scarlett Pimpernell
__________________
Into terror!, Into valour!
Charge ahead! No! Never turn
Yes, it's into the fire we fly
And the devil will burn!
- Scarlett Pimpernell