サイエンス図表：プレートと震源帯の図

Scientific infographic poster of Earth's tectonic plates and major earthquake zones, front-view flat presentation. Layout: a large world map centered on the poster with the fifteen major and minor plates drawn as distinct color regions, including the Pacific, North American, Eurasian, African, South American, Indo-Australian and Antarctic plates, each labeled in bold capitals with a small plate-motion arrow showing drift direction and speed in centimeters per year. Convergent boundaries drawn as thick red lines with triangular markers, divergent boundaries as green double lines, and transform boundaries as thin yellow lines. Earthquake epicenter hotspots shown as concentric circle icons of increasing size, and volcanic arcs as small triangle icons. Color system: soft pastel plate fills (blue, green, orange, pink, purple, teal) on an ocean-navy base (#12355B) with boundary colors red, green and yellow. Typography: clean geoscience sans-serif labels. Background: subtle depth-contour texture. Data feel: geophysics atlas chart with plate-name banners and boundary legend. Lighting: even cartographic light, faint inner glow on hotspots, crisp lines. 4k