Validated Estimation of Response Spectra for the 1980 Irpinia Earthquake in the Eastern Area of Naples

摘要: Abstract The seismic ground motion of a test area in the eastern district Naples is computed with hybrid technique based on mode summation and finite difference methods. Synthetic seismograms are validated 1980 Irpinia earthquake, good example strong shaking for Naples, recorded 10km from modeled sites. Realistic SH P‐SV wave along geological cross sections representative area. As expected, sedimentary cover causes an increase signal's amplitudes radial transverse components. spectral amplification vertical generally negligible; instead, that horizontal ranges between 2 5 0.7‐2.2 Hz frequency range. Average maximum amplifications considered different acceleration response spectra earthquake evaluated order to formulate appropriate design improvements building code.