Magnitude
Seismic Scale (Seismic Scale), or earthquake intensity, used to express a region affected by the earthquake, divided into several levels, the higher the higher the level that the stronger, resulting in the disaster is also more important. It is usually a commonly used seismic measure, which is usually defined as the grading of the acceleration of the earthquake. Countries have their own way of classification, Taiwan was originally divided into 0 ~ 6 seven grades, in 1999 921 set after the earthquake, the additional level 7. Earthquakes are often confused with the Magnitude Scale, which represents the energy released by the earthquake. The magnitude of the earthquake will only have a value, but the magnitude represents the effect of energy reaching the surface, , The seismogenic distance has a relationship, together with the earthquake in different places will be different, with the size of the earthquake does not necessarily appear the same degree of shock. ...