Italy
regional risks include landslides, mudflows, avalanches,
earthquakes, volcanic eruptions, flooding; land subsidence in Venice

Jamaica
hurricanes (especially July to November)

Jan Mayen
dominated by the volcano Haakon VII Toppen/Beerenberg;
volcanic activity resumed in 1970

Japan
many dormant and some active volcanoes; about 1,500 seismic
occurrences (mostly tremors) every year; tsunamis; typhoons

Jarvis Island
the narrow fringing reef surrounding the island poses
a maritime hazard

Jersey
NA

Johnston Atoll
NA

Jordan
droughts; periodic earthquakes

Juan de Nova Island
periodic cyclones

Kazakhstan
earthquakes in the south, mudslides around Almaty