Fig. 3From: Rapid dike intrusion into Sakurajima volcano on August 15, 2015, as detected by multi-parameter ground deformation observationsSeismicity and ground deformation during the period from August 15 to 17, 2015. a Cumulative seismic energy. b Tilt and strain change at the AVOT. Tilt-R and Tilt-T represent radial and tangential tilt, respectively; EX-R, EX-T and EX-O represent radial, tangential and oblique strain, respectively. Errors of these data are ≤0.2 μ. c Tilt and strain change at the HVOT. Errors of these data are ≤0.2 μBack to article page