Example depth slice from the final crustal velocity model. The slice is for the cells 12–13 km below sea level. Pale grey regions are outside the model area, dark grey elements are below the Moho and therefore do not contain velocity data. Velocity contours are drawn in black at 0.25 km s^–1 intervals, for velocities greater than 5.5 km s^–1. Uncertainty contours are drawn in black at 0.5 km s^–1 intervals.