Elevation 777 m | Age of rock 32-39,000 years Last eruption 1766 | |
Easiest route active= nodormant= yes Similar Volcán Azul, Cuilapa‑Barbarena, Morne Plat Pays, Morne Watt, Laguna de Aramuaca | ||
Qualibou, also known as the Soufrière Volcanic Centre is a 3.5 X 5 km wide caldera on the island of Saint Lucia that formed approximately 32-39,000 years ago. This eruption also formed the Choiseul Tuff which covers the south east portion of the island.
Map of Qualibou, Malgretoute, Saint Lucia
The Pitons are two large lava domes that formed 200-300,000 years ago, some time before the formation of the caldera and since then other domes have filled the caldera floor. More recently, there was a phreatic eruption in 1766 that deposited ash over a wide area.
Sulphur Springs is an active geothermal area located roughly in the centre of the caldera.
In 1990, 1999 and 2000 there were shallow depth volcanic earthquakes located 6 km ESE of the caldera.
References
Qualibou Wikipedia(Text) CC BY-SA