Not felt.

Felt only by very few individual people at rest in houses.

Felt indoors by a few people. People at rest feel a swaying or light trembling.

Felt indoors by many people, outdoors by very few. A few people are awakened. Windows, doors and dishes rattle.

Felt indoors by most, outdoors by few. Many sleeping people awake. A few a frightened. Buildings tremble throughout. Hanging objects swing considerably. Small objects are shifted. Doors and windows swing open or shut.

Many people are frightened and run outdoors. Some objects fall. Many houses suffer slight non-structural damage like hair-line cracks and fall of small pieces of plaster.

Most people are frightened and run outdoors. Furniture is shifted and objects fall from shelves in large numbers. Many well built ordinary buildings suffer moderate damage: small cracks in walls, fall of plaster, parts of chimneys fall down; older buildings may show large cracks in walls and failure of fill-in walls.

Many people find it difficult to stand. Many houses have large cracks in walls. A few built ordinary buildings show serious failure of walls, while weak older structures may collapse.

General panic. Many weak constructions collapse. Even well built ordinary buildings show very heavy damage: serious failure of walls and partial structural failure.

Many ordinary well built buildings collapse.

Most ordinary well built buildings collapse, even some with good earthquake resistant design are destroyed.

Almost all buildings are destroyed.