Figure 2
From: Characteristics and impact of environmental shaking in the Taipei metropolitan area
Spectrograms of the vertical seismic data for four stations from the CT subarea. Data for Station (a) CT07 and (b) CT08 are for the period of February 12 to 18, 2019, and (c) and (d) for the period of January 12 to 18 in the same year. In each figure, the upper panel shows the frequency range from 0–50 Hz and the lower panel only shows low frequencies, below 1 Hz.
