Fig. 14

P-wave velocity structure in Nicaragua and Costa Rica (Syracuse et al. 2008). P-wave velocity is shown on across-arc vertical cross-sections along lines a through f in the inset map by the color scale at the bottom. Regions surrounded by white contours contain 50 or more seismic rays. Earthquakes within 40 km to the northwest of each cross-section line are shown in white and those within 40 km to the southeast are in black. Red inverted triangles show the trench axis