sudden violent shaking of ground as result of movements within earth's crust or volcanic action.

in space separating things. In the space that separates two objects.

Depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof.

trembling feeling or sound. To shake slightly because you are afraid/excited.

performed from rest or upright position, without run-up. Your status or position relative to your community. To last for a long time.

all things.

situated directly below something. part or side of something facing towards ground. Lower than, as in status; beneath.

able or likely to cause harm or injury.

Of the top layer; not deep or meaningful. Nature or emotions that show, but may not be true. To appear after being hidden, unseen, or unknown.

act or instance of moving gradually from one image or scene in film to another. become or cause to become incorporated into liquid so as to form solution.

large bowl-shaped cavity in ground. Large holes in ground caused by heavy impact. form crater in.

extending or directly underneath something. Under; In or to a lower position; below.

bring into existence.

act of swallowing something. Small northern birds with downward-pointing wings. cause or allow.

floor of building which is partly or entirely below ground level.