Fig. 3From: Monitoring ground deformation of eruption center by ground-based interferometric synthetic aperture radar (GB-InSAR): a case study during the 2015 phreatic eruption of Hakone volcanoCumulative relative displacement for the period from 10:20 a.m. of June 25 to 9:26 a.m. of July 3. a and b Bird’s-eye view from the radar toward southeast. The negative value (red) in the color bar indicates that the area is moving toward the radar. The positive value in blue indicates that the area is moving away from the radarBack to article page