
handle: 11390/1083153
Two questions have puzzled seismologists in the past: if vertical peak accelerations could exceed the horizontal ones and if vertical peaks exceeding 1 g were feasible in the near field. Recordings of vertical accelerations larger than 1 g are very rare, only 7 so far (according to the Strong Motion Virtual Data Center, see Table 1). This is mainly due to the scarce availability of recorders located in the near field (d0.7 s).
Vertical ground motion, PGA, standard deviation
Vertical ground motion, PGA, standard deviation
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