Abstract The Hakodate Plain in the southern part of Oshima Peninsula, Hokkaido, Japan, is a sedimentary basin surrounded by mountains. vertical displacements caused active faults along western margin increased depth Plain. Small-to-large-sized microtremor array surveys were conducted at five sites to estimate S-wave velocity structure down seismic bedrock for each site develop detailed model. A...

The citadel of Machupicchu is probably the most famous Inca heritage site in Peru. Considering the seismically active region, this research is an attempt to perform a seismic risk analysis of the heritage structures at Machupicchu. A systematic approach is adopted for this purpose. Characteristic seismicity of the region, where these historical constructions are located, is discussed based on t...

A site condition survey is extremely important for the seismic fortification of major projects. The distribution underlying weak interlayer in sites harmful to buildings. However, it a technical problem find out overburden. shallow velocity structure can directly reflect change characteristics stratigraphic structure. In this paper, acquisition background noise conducted using microtremor linea...

it is very important to study and simulate s-wave structure for near surface (alluvium parts, in particular) owing to its direct relationship to urban facilities in geotechnical and earthquake engineering studies. so, in seismic microzonation, the first step is to study and identify s-wave pattern in alluvium in order to categorize different parts of cites according to s-wave velocity. current ...