2-D Modeling of Site Response for Microzonation Purposes

2-D Modeling of Site Effects Along the EURO-SEISTEST Array (Volvi Graben, Greece)

“…1), of relevant ampli®cations. The evaluation of site eects is based on observations and simulations of the wave®eld generated by the local small earthquake (M 2.3) studied by SUHADOLC and MARRARA (1999). The results of this paper, an extension of the ones shown in SUHADOLC and MARRARA (1999), con®rm this conclusion.…”

“…In fact, the area belongs to one of the more active seismic regions of Europe, and it is characterized by soft sediments which are responsible, together with the particular geometry due to the fault system ( Fig. The results of this paper, an extension of the ones shown in SUHADOLC and MARRARA (1999), con®rm this conclusion. Previous works by DIMITRIOU et al (1998), RIEPL (1997 have shown that the valley is characterized by levels of ampli®cation that can exceed the value of 10.…”

“…The stations have been chosen near the center or borders of the valley, near a fault, or based on peculiarities (remarkable dierences in the values of nearby stations) of AMAX and W curves (Figs. In the intermediate frequency range (2±4 Hz) the simulations underestimate (on all components) the observations at RTES (as shown already by SUHADOLC and MARRARA, 1999), whereas at RYEL only the vertical component is slightly underestimated. RTOW is located in correspondence with the eastern border of the graben (Fig.…”

“…Preliminary results related to horizontal components of motion only at four stations (equipped with GuÈ ralp-CMG40 sensors) have been discussed by SUHADOLC and MARRARA (1999). In this paper we also extend the computation to the vertical component of motion and to the stations equipped with Mark-L22 sensors.…”