A comparison can be drawn to the scales used for measuring earthquakes. Although the Richter scale is quite common in many parts of the world, in Japan the Shin

A comparison can be drawn to the scales used for measuring earthquakes. Although the Richter scale is quite common in many parts of the world, in Japan the Shindo scale is primarily used. This measures the local ground shaking intensity, as opposed to the Richter scale which measures the amount of energy released in the quake. https://en.wikipedia.org/wiki/Japan_Meteorological_Agency_seismic_intensity_scale https://en.wikipedia.org/wiki/Japan_Meteorological_Agency_se...