Fig. 8.

Estimated locations of features on SAR images. Solid circles indicate centers of estimated lava dome. Solid triangles indicate centers of the rings that appeared on TerraSAR-X images acquired on January 31 and February 1. Solid diamonds denote locations of volcanic vents, and solid lines denote cracks. The dashed circle indicates a schematic margin of lava dome estimated from the TerraSAR-X image of February 1. Topographic contours are depicted using the digital ellipsoidal height model used in this study.