Being a country exposed to strong seismicity, the estimation of seismic hazard in Tajikistan is essential for urbanized areas, such as rapidly growing capital city Dushanbe. To ensure people’s safety and adequate construction work, detailed microzonation key proper planning. Existing estimations date back 1978; they are based on engineering geological investigations observed macroseismic data. ...

Abstract Ambient seismic noise becomes more and important helpful on assisting velocity model inversion, earthquake detection, ground motion prediction. Based the analysis of continuous data ocean wave height, we find that height winter storms have a controlling factor DF microseismic energy level its frequency extent in time scale. It shows high low accompanied with wide narrow range consisten...

The determination of the dynamic properties and ground effect soil plays an important role in reducing damages due to earthquakes. One methods determining a region is measurement microtremors microtremor method has been widely used for this purpose recent years. Microtremor measurements were made at 36 points order determine local Kütahya Dumlupınar University Evliya Çelebi Campus which constan...

SUMMARY In this paper, a method is proposed for estimating the intensity distribution of microtremors arrival direction, from simultaneous observations vertical motion, using an array simple geometry consisting only three receivers. This based on fact that complex coherence function, which defined as normalized cross-spectrum microtremor recordings observed at two sites, contains information ab...

This article explores the possibility to measure deformations of building foundations from measurements of ambient noise and strong motion recordings. The case under study is a seven-storey hotel building in Van Nuys, California. It has been instrumented by strong motion accelerographs, and has recorded several earthquakes, including the 1971 San Fernando (ML ˆ 6.6, R ˆ 22 km), 1987 Whittier–Na...