Fig. 6From: S-wave attenuation structure beneath the northern Izu–Bonin arcMap views of Q −1 for a 4–8 Hz, b 8–16 Hz, and c 16–32 Hz at 0–30, 30–50, and 50–70 km depth. Triangles represent Quaternary volcanoes. Areas A, B, C, and D are high-Q −1 anomalies beneath the volcanic front, and E and F are moderate-Q −1 areas in the forearc side (see “Results” and “Discussion” for details)Back to article page