Volcanoes IJK
Irazu, Costa Rica
Izalco, El Salvador
Izu-Oshima, Japan (Oshima)
Karkar, Papua New Guinea
Karthala, Indian Ocean
Karymsky, Siberia (Kamchatka)
Katmai, Alaska
Kelut, Indonesia
Kilimanjaro, Tanzania (Africa)
Kilauea, Hawaii
Kliuchevskoi, Siberia (Kamchatka)
Krafla, Iceland
Krakatau (Krakatoa), East Java, (Indonesia)
Krasheninnikov