A second stage, "intermediate phase", started around 100, 000 years ago, after a long period of quiescence. This stage is marked by the formation of the Morne Macouba dome, then later on, the Morne Macouba caldera.

 

 

 

During the intermediate phase, there were many eruptions which produced pyroclastic flows. Around 25, 000 years ago, a large Southwest sector collapse occurred. This event is similar to the eruption of Mt. St. Helens in 1980.