Archive of the microtremor data observed at rock/stiff-soil sites and the analysis results

This archive includes the microtremor data observed at 15 rock/stiff-soil sites and the analysis results, which were fully described in a paper "Spatial autocorrelation method for a simple microtremor array survey at rock/stiff-soil sites" by Ikuo Cho (2023, Geophysical Journal International, in press).