Figure 2. Map of Japan Trench area with seismicity. The locations of proposed Sites JT-1 and JT 2 are shown. Focal depth symbols: open circle = 0-10 km, open square = 10-20 km, open triangle = 20-30 km, closed circle = 30-40 km, closed square = 40-50 km, closed triangle = 50+ km.
Figure 3. Tectonic subsidence history (from von Huene and Lallemand, 1990).
Figure 4. Schematic configuration of the instrument package with multisensors for crustal strain and broadband seismometry.
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