"Shaped nuclear charge designed to collapse the Nydus tunnels."
- Seismic charge description(src)
Seismic charges are terran nuclear explosives.
Plot option : Raynor's Raiders attack the tunnels
During the Second Great War, Raynor's Raiders detonated three charges underground on Char; the nydus network near the primary hive was destroyed by the tunnel collapses.
Plot option ends here