Fig. 3From: Precursory tilt changes associated with a phreatic eruption of the Hakone volcano and the corresponding source modelObserved tilt records over an 8 min period starting at 7:32 a.m. on June 29, 2015. Note that the scale of tilt change is different for two plots. The site names and components are shown on the right-hand side of the figure. The sampling period was 1 s. The shaded areas represent reverse motionsBack to article page