I-III: Slight

Not felt, barely noticeable movement.

IV-VI: Moderate to strong

Dishes can be broken. Easily felt by those near the epicenter.

VII-IX: Very strong to violent

Difficult to stand upright. Poorly built structures are badly damaged. Considerable damage to well-built structures may occur.

X-XII: Intense to cataclysmic

Poorly built structures collapse. All buildings may be destroyed, and rivers may be rerouted.