Tahayt A. auteur aut IRD Feigl K. L. auteur aut IRD Mourabit T. auteur aut IRD Rigo A. auteur aut IRD Reilinger R. auteur aut IRD McClusky S. auteur aut IRD Fadil A. auteur aut IRD Berthier E. auteur aut IRD Dorbath Louis auteur aut IRD Serroukh M. auteur aut IRD Gomez F. auteur aut IRD Ben Sari D. auteur aut IRD text journalArticle eng text/pdf born digital access The magnitude M-w=6.3 earthquake in Al Hoceima, Morocco of 24 February, 2004 occurred in the active plate boundary accommodating the oblique convergence between Africa and Eurasia. Three different sets of estimates of its source parameters have already been published. We try to resolve the discrepancies between them by using additional data including two remote sensing satellite systems (ENVISAT and SPOTS). Using a model with a dislocation in an elastic half-space, we constrain the source parameters. The hypothesis of two subevents on distinct faults as inferred from seismological inversions is confirmed here by adopting a cross-fault mechanism. The rupture began on a left-lateral strike-slip fault striking at N10 degrees azimuth with 90 cm of horizontal slip and then transferred to a right-lateral strike-slip fault striking at N312 degrees azimuth with 85 cm of horizontal slip. The first fault is at 500 m depth from the free surface and the second fault is at 3 km depth. This model is consistent with ground-based observations, including GPS, seismology, and mapped surface fissures. The pair of faults activated in 2004 appears to constitute part of a complex seismogenic structure striking NNE-SSW that separates the Rif tectonic blocks. specialized InSAR ENVISAT SPOT GPS Fault Earthquake source parameters Al Hoceima Morocco 066 113 2 306-316 2009 0034-4257 https://www.documentation.ird.fr/hor/fdi:010053055 10.1016/j.rse.2008.09.015 0034-4257 [F B010053055] https://www.documentation.ird.fr/hor/fdi:010053055 https://www.documentation.ird.fr/intranet/publi/2009/compl3/010053055.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2011-03-23 2017-08-23 fdi:010053055 fre