Fig. 6From: Locating hydrothermal fluid injection of the 2018 phreatic eruption at Kusatsu-Shirane volcano with volcanic tremor amplitudea Residual values (\(RES\)) with different sour elevations beneath the crater setting \({S}_{i}\) as 1. b Modeled amplitude at an elevation of 2050Â m (the ground surface) for the reference time window. Red bars correspond to values of \({S}_{i}\) at each stationBack to article page