The Falkland Islands may at some point in the future face a major tsunami.
Scientists have found evidence of ancient slope failures on the seafloor to the south of the British Overseas Territory.
Computer models suggest these underwater landslides would have been capable of sending waves crashing on to the Falklands' coastline that were tens of metres high.
Fortunately, such events only appear to happen once every million years or so.
That means islanders shouldn't stay awake at night worrying about them, says Dr Uisdean Nicholson who's been investigating the issue.
