- An earthquake on Monday afternoon registered an "upper 5" on Japan's seismic intensity scale in certain areas.
- This "upper 5" intensity, recorded in Aomori prefecture, indicates that most people would struggle to walk without support and unfixed furniture could topple.
- Lower 5 levels on the shindo scale were also reported in Iwate and Miyagi prefectures.
- Japan employs a unique shindo scale, ranging from 0 to 7, to measure the actual impact of ground shaking at a specific location.
- This shindo scale differs from the magnitude scale, which quantifies the earthquake's total energy at its origin.
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