Abstract
The site amplification factors for peak ground acceleration (PGA) and JMA seismic intensity (IJMA) at each observation point was evaluated from earthquake motion records of seismograph network in Ishikawa Prefecture, K-NET and KiK-net. Compared with the site amplification for PGA and IJMA, these show positive correlation. And, the site amplification forIJMA (FI) shows large value in sites where the site amplification factor for PGAFAis small but predominant period of ground (Tg) is long. Next, assuming thatFIis expressed as function in terms ofFAandTg, the influence ofFAandTgonFIis is examined by regression analysis. As a result of analysis, it shows thatFAhighly correlates withFImore thanTg.
