Up until February 2016, sink holes were not considered as a hazard in the Eastern Caribbean. There had been no documented sink holes on any of the volcanic islands. On 17 February 2016, MVO staff on a helicopter visit to a monitoring station in North West Bluff, at the very northern tip of Montserrat, discovered a sink hole, five metres in diameter and almost 40 metres deep.
Investigation by MVO staff showed that the sinkhole was probably linked to a sea cave. The appearance of more sink holes in this area is not likely, but cannot be ruled out.
For more information, see this report [link].