Seismic Intensity : Six (VI) - Slightly Damaging

Six (VI) : Felt by everyone, outside or inside; many frightened and run outdoors, walk unsteadily. Windows, dishes, glassware broken; books fall off shelves; some heavy furniture moved or overturned; a few instances of fallen plaster. Damage slight to moderate to poorly designed buildings; all others receive none to slight damage.

Perceived Shaking


Potential Damage


Peak Ground Motion Acceleration

9.2 to 18.0 (%g)

Peak Ground Motion Velocity

8.1 to 16.0 (cm/sec)

Video Example

Intensity Six (VI)

Reference: Modified Mercalli Intensity Scale (Adapted from Sieberg's Mercalli—Cancani scale, modified and condensed)