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    SEISMIC GROUND RESPONSE ANALYSIS FOR LIQUEFACTION ASSESSMENT IN BUNAKEN, NORTH SULAWESI, INDONESIA
    Rensia Erlyana MajidFikri FarisAhmad Rifa’i
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    Abstract:
    Bunaken Island is a quaternary deposit of Holocene age. Dominating sand layers, shallow groundwater table, and near active fault locations make the area highly susceptible to liquefaction. This study aims to determine the minimum ground acceleration that can potentially trigger liquefaction in the area. In this study, earthquakes originating in the North Sulawesi Thrust were modelled with various magnitudes. PGA was calculated using the attenuation function from : Liu and Tsai (2005), Abrahamson et al. (2016), Atkinson and Boore (2003), and Zhao et al. (2006). Each earthquake parameter was analyzed for its liquefaction potential using the simplified procedure by Idriss and Boulanger (2008), and then the minimum earthquake parameter value that can cause liquefaction was determined. The analyses show that the study site has the potential for liquefaction if more than Mw 5.8 earthquake occurs with a PGA value of above 0.17g. The BKN-BH02 borehole is the most critical point of the four boreholes made at the study site.
    Keywords:
    Earthquake shaking table
    Topics:
    Geological and Geophysical Studies
    Geotechnical Engineering and Soil Mechanics
    Geotechnical and construction materials studies
    Assessment of liquefaction potential based on peak ground motion parameters
    Soil Dynamics and Earthquake Engineering (2005)
    Rolando P. Orense
    Strong ground motion
    Soil liquefaction
    Citations (39)