On a Method to Determine the Kind of Ground by Measuring Microtremors
常時微動実測に基づく地盤種別決定法について

Ai'ichiro TANAKA
1986 Zisin (Journal of the Seismological Society of Japan 2nd ser )  
Fig. 1. Proposal A and proposal B in the classification of ground (after K. KANAI). Largest period (sec.) Mean period (sec.) Largest amplitude (micron) -Predominant period (sec.)
doi:10.4294/zisin1948.39.4_665 fatcat:u4mxqgef2jbunin4lntzrqcsiu