Evaluation of Site Amplification Factor of Observation Sites in Ishikawa Prefecture
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概要
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The site amplification factors for peak ground acceleration (PGA) and JMA seismic intensity (<I>I<SUB>JMA</SUB></I>) 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 <I>I<SUB>JMA</SUB></I>, these show positive correlation. And, the site amplification for<I>I<SUB>JMA</SUB></I> (<I>F<SUP>I</SUP></I>) shows large value in sites where the site amplification factor for PGA<I>F<SUP>A</SUP></I>is small but predominant period of ground (<I>T<SUB>g</SUB></I>) is long. Next, assuming that<I>F<SUP>I</SUP></I>is expressed as function in terms of<I>F<SUP>A</SUP></I>and<I>T<SUB>g</SUB></I>, the influence of<I>F<SUP>A</SUP></I>and<I>T<SUB>g</SUB></I>on<I>F<SUP>I</SUP></I>is is examined by regression analysis. As a result of analysis, it shows that<I>F<SUP>A</SUP></I>highly correlates with<I>F<SUP>I</SUP></I>more than<I>T<SUB>g</SUB></I>.
- 一般社団法人 日本地震工学会の論文
一般社団法人 日本地震工学会 | 論文
- Scope of this issue
- Study on the Priority of Measuring against Scenario Earthquakes Based on Seismic Risk Estimation
- Investigation on Actual Disaster Responses in Local Governments in terms of Information Sharing
- Empirical Correction of Ground Motion Prediction Equations of Response Spectra at Rock Sites for Near-Field Earthquakes Considering Amplification Effect within Deep Subsurface Structure
- A Study for Estimating Suspension Time of Railway Lines Due to Earthquake