| Meiji Seamount(expression, name, volcano, geology) |
| Midway Atoll(name, volcano, geology) |
| Millunu(noun, name, volcano, geology) |
| Misery Kimberlite Complex(name, volcano, geology) |
| Mo'orea(noun, name, volcano, geology) |
| Mole Hill(name, volcano, geology) |
| Montiferru(noun, name, volcano, geology) |
| Morococala(noun, name, volcano, geology) |
| Mount Boucherie(name, volcano, geology) |
| Mount Royal(expression, name, volcano, geology) |
| Mount Skukum Volcanic Complex(name, volcano, geology) |
| Mountain Lake cluster(expression, name, volcano, geology) |
| Nihoa(noun, name, volcano, geology) |
| Niihau(noun, name, volcano, geology) |
| Nintoku Seamount(name, volcano, geology) |
| Ojin Seamount(name, volcano, geology) |
| Pastillito(noun, name, volcano, geology) |
| Pilot Knob(expression, name, volcano, geology) |
| Porco(noun, name, volcano, geology) |
| Porunita(noun, name, volcano, geology) |