It doesn't look like the plate simply fell off the shelf, nor does it look like the result of an earth tremor. It looks like it was pulled or thrown from the shelf. But was it pulled by something like fishing line (a hoax), or is this an example of poltergeist activity? We can't make a good determination from the information in the video. One curious factor is that the dish does not break. It could be an unbreakable dish and it does land on what could be carpeting. By the same token, if this is a hoax, the hoaxers might have chosen an unbreakable item to re-use until they got the effect right. What do you think?