From: Temporal change of near-surface shear wave velocity associated with rainfall in Northeast Honshu, Japan
24 h rainfall totals (mm)
Rainfall classes
This study
CMA
0
Level I
No rain
0.1–25
Level II
Light to moderate rain
25–50
Level III
Heavy rain
50–75
Level IV
Torrential rain
75–100
Level V
Heavy torrential rain
≥ 100
Level VI
Downpour