Methane Bubble Under Gulf of Mexico?

Watch the video above and tell me what is going on? We've all heard rumors and theories about methane bubbles being trapped over the ocean floor, so when I saw this video, I was amazed to watch the ocean floor rise and drop within seconds. Someone caught a live feed showing a mechanical arm trying to pump something into or suck something out of the ocean floor, when the seafloor unexpectedly rose and collapsed. Youtuber PropheticSeer released a video of the entire incident. Was the arm trying to receive pressure? Is this a normal occurrence? Or is this a sign that something truly awful is about to happen?

I don't know, but it doesn't look good.

Is there a methane bubble under the Gulf of Mexico and is there a risk of an explosion or tidal wave threatening Gulf communities?

Is this video a fake? I have some questions about the video, If the floor was really raising, why didn't the camera rise with it?

Here's another video worth checking out.