Fig. 6

GNSS velocity field. a Horizontal components and b vertical component with respect to 0250 (star). Red arrows indicate the velocity vectors used for the correction of the interferograms. Blue arrows are those not used for the correction. For horizontal components, the ellipse at the tip of each vector represents the 95% confidence interval. For vertical components, the error bar at the tip of each vector represents the 95% confidence interval. The red frame indicates the area shown in Figs. 5 and 7. Triangles indicate active volcanoes. Black lines represent active faults