Tim Cook answered
There are volcanoes in 8 Caribbean nations: Dominica, Grenada, Guadeloupe, Martinique, Montserrat, St Kitts & Nevis, St Lucia and St Vincent & the Grenadines. Most are inactive.
Other Volcanoes in the Region:
- Saba; Quill (former Dutch Antilles, technically Dutch property)
- Liamuiga; Nevis Peak (St Kitts & Nevis)
- Kick'em Jenny; St Catherine (Grenada)
- Grande Soufriere (Guadeloupe)
- Mt. Pelee (Martinique)
- Qualibou (St Lucia)
- La Soufriere (St Vincent)
- The Boiling Lake; Morne aux Diables; Morne Diabolitins; Morne Troix Pitons; Morne Watt (Dominica)
These volcanoes are either dormant or extinct.
Here's more on the ongoing Montserrat incident: