Distribution of the PGA in terms of the tangential component ground motion from the mainshock of the 2000 Tottori-Ken Seibu, Japan, earthquake at frequencies of (a) 0.125 Hz and (b) 3.0 Hz derived from the waveform of 523 free-field (K-NET and KiK-net) stations, and 220 borehole (KiK-net) station records at frequencies of (c) 0.125 Hz and (d) 3 Hz.