Lahsen Ait Brahim

Expertise & consulting

Research applied to concrete decisions: a building code, a hazard map, an opinion on a project site.

Areas of work

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.

Institutional roles

Standards and public policy

Contribution to the drafting and revision of the Moroccan seismic building code, and to the national bodies overseeing its application.

  • 1999 – 2002

    Expert group behind the first Moroccan seismic building code, RPS 2000. Decree 2-02-177, Official Bulletin of 22 February 2002.

  • 2008 – 2011

    Expert group for the 2013 revision of the code, Official Bulletin 6206 of 21 November 2013. Determination of design velocities and accelerations for all 1,503 Moroccan municipalities, integrated into structural analysis and design software. Agreement 59/05 between the Ministry of Housing and Mohammed V University.

  • 2002 – 2024

    Member of the National Council for Earthquake Engineering. Decree 2-02-177.

  • 2022 – 2024

    Member of the national expert committee monitoring catastrophic events.

  • 2004 – 2005

    National commission reporting on the destructive 2004 Al Hoceima earthquake and on urgent measures to enforce RPS 2000.

International organisations

Expert assignments for the United Nations, the World Bank and development agencies on disaster risk reduction.

  • 2004 – 2005

    National project lead for UNDP and the Directorate for Risk Monitoring and Prevention. National report on the 1994-2004 decade of natural and technological disasters, presented at the second UN World Conference on Disaster Reduction, Kobe, January 2005.

  • 2011 – 2013

    National scientific working group on Morocco's national disaster risk management strategy, coordinated by the Government's Directorate of Economic and General Affairs and funded by the World Bank.

  • 2007 – 2011

    Expert group of the European CAMP project, Mediterranean Coastal Area Management Programme. Lead author of the sustainability analysis of the central Rif Mediterranean coastal zone, funded by UNEP for the Moroccan Department of the Environment.

  • 2013 – 2018

    Expert for the French Research Institute for Development (IRD), research programmes and training in the Global South.

  • 2006

    Lead expert for ISESCO on the strategy for reducing natural and man-made disaster risk across North Africa, the Middle East and Indonesia.

  • 2005 – 2006

    Project lead for seismic and satellite tsunami early-warning networks on Morocco's Atlantic and Mediterranean coasts, presented at the Third International Conference on Early Warning, Bonn, March 2006.

  • 2001

    Member of UNESCO-IUGS-IGCP project 457 on seismic hazard and risk assessment in North Africa. Member of the North African Seismological Group.

National and regional maps

Scientific lead on two reference maps, still used as baseline documents for seismic hazard across the Maghreb.

  • 1997 – 2000

    National expert and scientific lead at LPEE for the first seismotectonic and seismic hazard map of the Maghreb at 1:2,000,000, covering Morocco, Algeria and Tunisia. Published by LPEE, Casablanca, 2000.

  • 1989

    Expert group behind the first seismicity map of Morocco, 1901 to 1989, at 1:2,000,000, published by the Directorate of Land Registry and Topographic Works.

Learned societies and peer review

Founding and running of Maghrebi and African bodies for earthquake engineering.

  • 2015 – 2024

    Secretary general of the Maghreb Committee for Earthquake Engineering, of which he is a founding member.

  • 2012 – 2018

    Vice-president of the Moroccan Association for Earthquake Engineering, of which he is a founding member.

  • 2005 – 2024

    Member of the scientific and technical commission of the African Centre for Catastrophic Risks, of which he is a founding member.

  • 1991 – 2024

    Reviewer for national and international journals: seismic hazard, landslides, remote sensing and GIS, environment.

  • 2002 – 2004

    National vice-coordinator for the geological field trips of the 32nd International Geological Congress in Florence, and scientific lead for the field guidebooks covering the four structural domains: Rif, Meseta, Atlas and Anti-Atlas.

Clients and partners

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