等效地震动参数在烈度速报中的应用

Application of equivalent ground motion parameters to immediate report of intensity

仪器烈度计算离不开各种地震动参数,然而众多研究结果表明,仪器烈度与实际调查烈度相吻合的程度较低,这给我们进一步开展相关研究工作带来了不少困难。在广泛收集强震观测记录和实际调查烈度这两种资料的基础上,通过数学方法引入了等效地震动参数这一概念,很大程度上提高了仪器烈度与实际烈度相一致的比例。研究结果表明,等效地震动参数在烈度速报中有着广阔的应用前景。

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.