01
The Moroccan seismic building code
Member of the expert group behind RPS 2000 and its 2013 revision. Design accelerations and velocities determined for all 1,503 municipalities.
Independent consultant - geological and seismic hazards
Lahsen
Ait Brahim
Active faults, seismic hazard, slope instability. Professor at Mohammed V University of Rabat from 1980 to 2018, head of the GEORISK team.
Doctorat d'État, 1991
Chronological section
Publications and citations - ResearchGate, August 2026
1980
Postgraduate diploma in geology and seismotectonics. Joins Mohammed V University.
1991
Doctorat d'État, in collaboration with Paris VI and Cornell. Founds the GEORISK team.
2000
First seismotectonic and seismic hazard map of the Maghreb at 1:2,000,000, published by LPEE.
2013
Revision of the seismic building code. Design accelerations for all 1,503 Moroccan municipalities.
2018
End of an academic career spanning thirty-eight years of teaching and research.
Key figures
- 126
- Publications
- 1,940
- Citations
- 50
- Doctoral theses supervised
- 1,503
- Municipalities zoned - RPS
Publications and citations - ResearchGate, August 2026
Major contributions
02
The Maghreb map
Scientific lead of the first seismotectonic and seismic hazard map of the Maghreb at 1:2,000,000, covering Morocco, Algeria and Tunisia. Published by LPEE in 2000.
03
The GEORISK team
Founded and led from 1991 to 2018 a team of geologists, seismotectonicians, geophysicists and seismologists working on geological risk.
Bibliography
Forty years of publications, in one place
Search by title, journal or co-author. Filter by year and research theme. DOI links throughout, full text where openly available, BibTeX export for citing.
Expertise & consulting
Learn more →01
Seismic hazard and risk
Earthquake catalogues, source zones, acceleration maps, design coefficients for structures.
02
Slope instability
Landslide inventory, susceptibility and vulnerability mapping, land-use recommendations.
03
Remote sensing and GIS
Fracture analysis from satellite and radar imagery, photogrammetry, spatial risk modelling.
Clients
- Ministère de l'Habitat
- Ministère de l'Urbanisme
- Ministère de l'Aménagement du territoire
- ONCF
- ADM Autoroutes du Maroc
- LPEE
- NOVEC
- CID
- ONE
- SNED
- PNUD
- Banque Mondiale
- ISESCO
- IRD