ABSTRACT – Singapore is a city state island located off the southern tip of Malaysia Peninsula. Although Singapore is located in a low seismicity area with mild winds, it is a classic example of low seismic hazard and high exposure scenario. It is about 400 km away from a highly active earthquake belt comprising the Sumatra fault and the subduction zone. The response of a building to long-dista...

In this paper, the authors give a brief introduction to the earthquake monitoring system newly developed for two dams of a reservoir in North China. The two embankment dams are 66, 56 meters high and 960, 1008 meters long respectively. One of the dams suffered from severe landslide because of the 1976 Tangshan Earthquake, the design PGA of this site is set to 0.25g. Because of the complexity, i...

Site velocity structure determination and stratigraphic division are important purposes of microtremor survey, the precision dispersion curves is an factor affecting accuracy survey. In order to obtain more accurate curve S-wave structure, this paper proposed a processing method based on hierarchical frequency fusion seismic interferometry. Analysis was performed link between station pair spaci...

The site response transfer functions using 1D layered velocity models based on microtremor array exploration in the Niigata area, Japan, were examined whether it would be possible to explain the estimated high-frequency site responses using observed earthquake records or not. Our results showed the site response transfer functions were relatively larger in the frequency over about 3 or 6 Hz tha...

Abstract The subsurface investigation is very important in seismic hazard assessment for the city scale because it greatly affects propagation of waves on surface related to amplification phenomenon caused by thickness and hardness sediment. Local geology geotechnical conditions analysis are represented site class which determined based value Vs30 or NSPT30, besides that also necessary know dep...