In the upper range of IV, wooden walls and frame creak. Liquids disturbed, some spilled. Small unstable objects displaced or upset. Doors swing, close, open. Shutters, pictures move.
Pendulum clocks stop, start, change rate.
Moderate Objects Fall Felt by all. Many frightened and run outdoors. Persons walk unsteadily. Windows, dishes, glassware broken. Knickknacks, books, etc., off shelves.