[Southack]

Here's the seismograph of the earthquake. I personally don't see a nuke signature (sharp crack, not fuzzy) in it:

[TigerLikesRooster]

I also suspect that this is not a nuclear device(bomb) going off. More likely, nuclear reactor or other nuclear facility blew up and sent radioactive debris out to the surface.

[Partisan Gunslinger]

Here's the seismograph of the earthquake. I personally don't see a nuke signature (sharp crack, not fuzzy) in it:

They're not saying the nuke caused the earthquake, they're saying the earthquake caused the nuke to detonate.

Naturally, whether the nuke detonated or not, seismographic data will look like a regular quake as any disruption from the nuke would be drowned out by the much more powerful quake.

[Phoebe From China]

I know what you mean. But I can’t read the pic. :(