Fig. 2From: Precursory tilt changes associated with a phreatic eruption of the Hakone volcano and the corresponding source modelTime series of tilt changes observed at the stations shown in Fig. 1. The tilt records were averaged using 1 h moving time window. The cumulative number of earthquakes, daily number of earthquakes, and amount of precipitation are also shown. Significant tilt changes were observed on April 26, 2015Back to article page