Observatoire du Morne des Cadets

The Morne des Cadets Observatory is a facility designed to monitor volcanic activity in Martinique, featuring a multi-story building with underground sections and specialized chambers for seismic instruments. The structure combines engineering designed for precise ground movement detection with spaces that allow instruments to function effectively.

Following Mount Pelee's destructive 1902 eruption, Professor Alfred Lacroix established this monitoring facility in 1903 to track future volcanic events. This response to the catastrophe placed Martinique at the forefront of modern volcanic research.

The name reflects the location where it was built, and the facility stands as a symbol of scientific commitment to understanding the island's volcanic hazards. Visitors can observe how monitoring work remains an essential part of the community's relationship with Mount Pelee.

Visits are best arranged on weekdays when the team is present and can show how daily monitoring work happens. Calling ahead is recommended to ensure someone is available to guide you through the facility.

The building houses a massive Quervin-Picard seismograph that connects to the main structure through an underground passage. This extraordinary instrument shows the serious technical effort made over 100 years ago to record volcanic movements.

Location: Saint-Pierre

Inception: 1903

Elevation above the sea: 250 m

Address: Habitation Blondel, Morne la Rosette, route de l'Ancien observatoire

Website: http://ipgp.fr/fr/ovsm/lobservatoire-volcanologique-sismologique-de-martinique

GPS coordinates: 14.73460,-61.15967

Latest update: December 14, 2025 11:20