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icon Quake Severity


Japan’s revised Earthquake Intensity Scale, which is used as a companion to the Richter Scales, clarified what you can expect from various earthquake intensities.

RatingEffects
1.0 - 1.9Some feel trembling.
2.0 - 2.9Many feel trembling. Suspended lights sway.
3.0 - 3.9Some feel frightened. Dishes rattle.
4.0 - 4.9Those asleep are awakened. Some items fall off shelves.
5.0 - 5.4Some seek shelter. Dishes and books fall.
5.5 - 5.9Many frightened. Some free-standing objects tip over.
6.0 - 6.4Can’t stand still. Many windows break.
6.5 - 6.9Can only crawl. Some brick walls crumble, doors come off.
7.0 - 7.9People and furniture thrown about.
8.0 - 8.9Earthquake-proof buildings suffer damage.
9.0 - 9.9Total destruction.

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