Scale of Shindo

The scale of Shindo (in Japanese : 震度) is the seismic scale of intensity of the Japanese meteorological agency (AMJ). It is used with the Japan to measure the force of the Earthquakes. Contrary to the scale of Richter, which measures the total magnitude of the Earthquake and thus represents it with only one value, the scale of Shindo describes the degree of tremor of a point on the surface of the Ground. Thus, the measurement of an earthquake varies according to the place, and could be described like “shindo 4 with Tokyo, shindo 3 with Yokohama, shindo 2 with Shizuoka”.

The AMJ has a network of 180 seismographs and 600 measuring devices of seismic intensity, and provides a report/ratio in real-time to the media and on Internet: .

Explanation of the scale of shindo

The scale of Shindo goes from 0 to 7,7 being strongest. Some times, the Roman numerals are used, as for the scale of Mercalli, however this is not everyday usage with the Japan. The reports/ratios in real-times of the AMJ are automatically calculated starting from the acceleration of the ground, which can be expressed in meters by square seconds (m/s ²) in the Metric system (IF).

See too

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