65 mm/yr 71 mm/yr 73 mm/yr 74 mm/yr 58 mm/yr 51 m m / yr Pacific Ocean Arabian Basin Chile Basin Peru Basin 1906 M8.5 1922 M8.7 1960 M9.5 2001 M8.4 2010 M8.8 60°W 60°W 80°W 80°W 40°W 100°W 10°S 10°S 30°S 30°S MAP EXPLANATION Earthquakes M6.5+ 1900-2014 Magnitude 6.5 - 7.0 7.0 - 7.5 7.5 + Nucleation Points (M8.3+) Slab Contours Depth 0 - 120 (20 km intervals) 160 - 360 (40 km intervals) 400 - 560 (40 km intervals) 600 + (40 km intervals) Rupture Zones Aftershoc k Zones Subduction Transform Divergent Others 0 500 1,000 250 Kilometers P e r u - C h i l e T r e n c h Antarctica Plate Nazca Plate South American Plate Cocos Plate