Fig. 2From: Waveform inversion of the ultra-long-period seismic event associated with ground tilt motion during an eruption of Mount Kusatsu–Shirane, Japan, on January 23, 2018Topographic map of Mount Motoshirane. The red triangle represents the summit of Mount Motoshirane. The two dashed lines represent the regions of the Kagamiike-kita and Kagamiike craters. The green lines indicate the outlines of the eruptive vents estimated by the Geospatial Information Authority of Japan (GSI 2018b)Back to article page