One of the most frightening and destructive phenomena of nature that man experiences is a severe earthquake and its terrible aftereffects. Since long before man existed, probably for more than 4 billion years, the forces within the Earth that produce earthquakes have played an active role in shaping the Earth's surface. These unpredictable catastrophic movements of the Earth have caused a great number of human casualties and extensive property damage.
In cinematography, a jib is a boom device with a camera on one end, and a counterweight and camera controls on the other. [1] It operates like a see-saw, but with the balance point located close to the counterweight, so that the camera end of the arm can move through an extended arc.
Or perhaps from jib (v.) shift a sail or boom (1690s), from Dutch gijben, apparently related to gijk boom or spar of a sailing ship. Said to indicate a ship's character to an observant sailor as a strange vessel approaches at sea; also nautical slang for face, hence cut of (one's) jib personal appearance (1821).