Application of equivalent ground motion parameters to immediate report of intensity

Calculation of instrumental intensity needs a variety of ground motion parameters,but many research results show that,the instrumental intensity scarcely accords with the investigated intensity and this brings about a lot of difficulty in our further development of relative research work.Based on the wide collection of two kinds of data,i.e.the strong ground motion observation records and the actual investigated intensities,the concept of equivalent ground motion parameters was introduced based on a mathematic method.This work enhanced the consistent proportion of instrumental intensity with actual intensity.Results show that the equivalent seismic ground motion parameter has a wide prospect of application of immediate report of intensity.