MICROZONING OF HAZARD VULNERABLE USING MICROSEISMIC METHOD WITH HVSR (HORIZONTAL TO VERTICAL SPECTRAL RATIO) ANALYSIS IN BAYAT DISTRICT, KLATEN, INDONESIA

نویسندگان

چکیده

The Yogyakarta earthquake in 2006 caused damage several areas, especially the area of Klaten Regency. As a result, many infrastructures, houses, health facilities and casualties have been damaged. research was conducted with target knowing level earth's hazard by microzoning soil vulnerability areas Bayat District, Klaten, Central Java. This study used microseismic method HVSR (Horizontal to Vertical Spectral Ratio) analysis method. Where are natural/dominant frequency parameters, natural amplification, index as measured parameters? aims carry out microzonation disaster risks which interpreted from results obtained, namely amplification maps (A0), dominant (f0), (Kg), shear wave velocity at depth 30 meters (Vs30). Data acquisition carried 19 measurement points spacing between having distance 1-2 km using portable TDS seismograph. obtained varied values A0 0.9 – 8.8, f0 1.0 13.8 Hz, Kg 0.4 38.5, Vs30 228.1 1635.4 m/s. From these it can be categorized zoning regarding value based on (Kg) minimize

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ژورنال

عنوان ژورنال: Indonesian Physical Review

سال: 2023

ISSN: ['2614-7904']

DOI: https://doi.org/10.29303/ipr.v6i2.206