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
Kenya
recurring drought; flooding during rainy seasons
Kingman Reef
wet or awash most of the time, maximum elevation of
about 1 meter makes Kingman Reef a maritime hazard