This is just propaganda.

First, this video was spread as Russia destroying a Ukrainian ammo dump. It's obviously a fertilizer storage explosion.

Then, I think yesterday, some pro-ukrainian dude thought it was a good idea to change it to Ukraine destroying a Russian ammo dump. Cropped video to remove the Z watermark, which is why it is so zoomed in. It's still just a fertilizer video.

And now it's supposed to be a sea mine, transported into land? What's the source on this? It sounds very implausible. Sounds like people are just making stuff up, sharing it, and get hundreds of people spreading the new lie without questioning anything.