Journal
ACTA GEOPHYSICA
Volume 61, Issue 5, Pages 1130-1155Publisher
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.2478/s11600-013-0139-8
Keywords
ground motion prediction equation; mining seismicity; relative local amplification; peak acceleration
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Funding
- National Science Centre of Poland [NN525393539]
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Ground motion database from the region of A >> elazny Most tailings pond, the largest in Europe ore-flotation waste repository, is used to identify ground motion prediction equations (GMPE-s) for peak horizontal and peak vertical acceleration. A GMPE model including both geometrical spreading and anelastic damping terms cannot be correctly identified and the model with only spreading term is accepted. The analysis of variance of this model's residuals with station location as grouping variable indicates that station locations contribute significantly to the observed ground motion variability. Therefore, a site specific GMPE model with relative site amplifications is assessed. Despite short distances among stations, the amplification considerably vary from point to point, up to 1.8 times for the horizontal and 3.5 times for the vertical peak amplitude. The model including site effects enhances GMPE-s fit to observations, explains more than 60% dependent variables variability and correctly accounts for site effects.
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