| Hualalai(noun, activity, name, volcano) |
| Hudson Mountains(expression, activity, name, volcano) |
| Hunga Tonga(expression, activity, name, volcano) |
| Hverfjall(noun, activity, name, volcano) |
| Iliboleng(noun, activity, name, volcano) |
| Iliwerung(noun, activity, name, volcano) |
| Inielika(noun, activity, name, volcano) |
| Iojima(noun, activity, name, volcano) |
| Irazu Volcano(expression, activity, name, volcano) |
| Irruputuncu(noun, activity, name, volcano) |
| Isabela Island(expression, activity, name, volcano) |
| Isluga(noun, activity, name, volcano) |
| Izalco(noun, activity, name, volcano) |
| Izu-Tobu(noun, activity, name, volcano) |
| Jabal Yar(expression, activity, name, volcano) |
| Jabal al-Tair Island(expression, activity, name, volcano) |
| Jailolo(noun, activity, name, volcano) |
| Jocotitlan(noun, activity, name, volcano) |
| Jolnir(noun, activity, name, volcano) |
| Kanehekili Fluctus(expression, activity, name, volcano) |