Qualibou, also known as the
Soufrière Volcanic Center, is a 3.5 X 5 km-wide caldera on the island of
Saint Lucia that formed between 32,000 and 39,000 years ago. This eruption also formed the Choiseul Tuff which covers the southeastern portion of the island.
The Pitons are two large lava domes that formed 200 to 300,000 years ago, before the formation of the caldera; ever since then, other domes have filled the caldera floor. There was a
phreatic eruption in 1766 that deposited ash over a wide area.
Sulfur Springs
Mineral springs are naturally occurring springs that produces hard water, water that contains dissolved minerals. Salts, sulfur compounds, and gases are among the substances that can be dissolved in the spring water during its passage under ...
is an active geothermal area located roughly in the center of the caldera.
In 1990, 1999 and 2000 there were shallow volcanic earthquakes located 6 km ESE of the caldera.
Gallery
Image:Sulphur_Springs_2003.jpg, Sulphur Springs, Saint Lucia, Sulphur Springs
Image:Petit Piton.JPG, Petit Piton
Image:Day248bdriveq.JPG, Soufrière and the Pitons
References
External links
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Calderas of North America
Geography of Saint Lucia
Volcanoes of Saint Lucia
{{SaintLucia-geo-stub
