Figure 1. Al Hoceima region of Morocco with shaded relief (SRTM 90m). Large beach balls are focal-mechanism solutions of the 26 May 1994 and 24 February 2004 Al Hoceima earthquakes, whose epicenters are indicated by gray and black stars, respectively. Small black circles are M >4 aftershocks of the 2004 earthquake from Instituto Geografico Nacional (IGN) with focal-mechanism solutions from Stich et al. (2005). Dashed rectangles are the frames of the Envisat radar images with arrows showing the flight direction of the satellite that looks to the right. The convergent plate boundary between Africa and Eurasia is depicted with a thick gray line in the inset map with arrows illustrating the direction of convergence (DeMets et al., 1990; Nocquet and Calais, 2004).