Past Prologue wrote: BASHIR: What's bilitrium?
GARAK: A rare crystalline element, that can be an incredibly powerful source of energy. Provided, of course, one also has an anti-matter converter. Unfortunately, that's why Cardassians were chasing Tahna Los when he arrived here. He stole one.
Bilitrium+anti-matter converter=bomb
Past Prologue wrote: (Tahna is plugging in his device)
KIRA: Bajor Eight in one hundred twenty thousand kilometres. Dropping to impulse. What is that?
TAHNA: An anti-matter converter. I'm transferring power from the ship's warp drive into the storage cells.
KIRA: We've got a Klingon Bird of Prey decloaking dead ahead.
TAHNA: It's all right. We're here to meet them.
KIRA: Klingons? Why?
TAHNA: You'll know soon enough.
An anti-matter converter seems like an energy storage device.
Past Prologue wrote: TAHNA: If you don't, I'll explode the bomb right here and destroy all six colonies on Bajor Eight.
KIRA: You would kill thousands of your own people for this?
TAHNA: The question is whether you would kill them by refusing to set the course.
That sounds like a powerful bomb. While those sound like small colonies they must be reasonably far apart, or they would be one colony.
Past Prologue wrote: O'BRIEN: If that device goes off while they're at warp, they'll spread radiation across half the system.
Past Prologue wrote: KIRA: One hundred thousand kilometres to DS Nine. This is your idea of a non-violent solution? You realise there are hundreds of Bajoran civilians aboard the station.
TAHNA: No one's going to be hurt, Kira. Adjust your course to take a vectored approach past the mouth of the wormhole.
KIRA: The wormhole? It's not the space station you're after. You can't possibly believe you can destroy the wormhole with that device?
TAHNA: I don't have to destroy it, just have to collapse the entrance.
KIRA: You're only hurting Bajor by doing this, Tahna.
TAHNA: No more wormhole, no more Federation or Cardassians. Or anyone. Drop out of warp. Now!
(Kira does so, and also a sharp turn to throw Tahna off balance.)
Is this a quantifiable event, or is this too magical?
Screen caps of the bomb exploding.