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Earth, Planets and Space
Fig. 3 | Earth, Planets and Space

Fig. 3

From: Crustal deformation model of the Beppu−Shimabara graben area, central Kyushu, Japan, based on inversion of three-component GNSS data in 2000–2010

Fig. 3

Configuration of the base model. We define five blocks ([1]–[5]) on Kyushu island. The boundaries of the blocks (N1–N2, C1–C5, U1, H1) are shown by the broken lines. We select a subset of the block boundaries (N1, C1–C5) for dislocation sources. They are represented by the blue broken lines, and the others are by the green broken lines. Since the oceanic Philippine sea plate subducts on the east side of Kyushu island, we set dislocation sources for the subduction plate interface as shown by the blue thin lines. Moreover, we assume volumetric point sources for magma reservoirs beneath the volcanoes (Mt. Kuju, Mt. Aso, Mt. Unzen)

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