Abstract
A preliminary microzonation study was held in South Tangerang City region through the analysis of Vs-30 and. Vs-30 values was acquired from MASW (Multi Analysis Surface Method) Survey. The survey used PASI Multichannel Seismograph Type 16s24u in 8 (eight) different location around the South Tangerang City. After acquiring the data, the multichannel recording data was processed using Geopsy software to produce the 1-D Model of Shear Velocity in 30 meters depth. From the Vs-30 and we are able to determine the class of each site and the spatial distribution of Vs-30 and Dominant Period Values in South Tangerang City.From the Vs-30’s results, The North Serpong Site had the highest Vs-30 values if compared with the other sites (318.5390393 m/s), and categorized as the D Class site. Ciputat site owned the lowest Vs-30 values (124.7685506 m/s) and categorized as the E Class Site. The range of Vs-30 values in South Tangerang from the Vs-30 spatial distribution map are about 120-320 m/s.
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