Fig. 4

Histograms of correlation coefficients of 72 pairs of neighboring blocks. a–c Correlation coefficients of coordinates without (green) and with (others) low-pass filtering (LPF) for north (a), east (b), and up (c) components of a baseline POTM-POTS. A cut-off period of LPF is 500 (red), 5000 (blue), and 20,000 (brown) seconds. d–f Same as a–c but for a baseline GODE-GODN. g–i Same as a–c but for a baseline TSK2-TSKB