This article describes and analyzes the first comprehensive case study of the application of the IASC Guidelines on Mental Health and Psychosocial Support by Medicos del Mundo - Spain after the August 2007 earthquake in Peru.

The methodology and core principles of the intervention are briefy summarized. The article explains strategies and key messages that were transmitted at each level. It proposes a multilevel approach that combines lobbying, sensitization, and
training with key decision makers and grass roots work with leaders and community organizations.

The experience in Peru provides important lessons for future implementation of the guidelines in other disasters.