| Las Pilas(expression, activity, name, volcano, geology) |
| Lo'ihi Seamount(expression, activity, name, volcano, geology) |
| Loki Patera(expression, activity, name, volcano, geology) |
| Long Island(expression, activity, name, volcano, geology) |
| Makushin Volcano(expression, activity, name, volcano, geology) |
| Manam Motu(expression, activity, name, volcano, geology) |
| Manda Hararo(expression, activity, name, volcano, geology) |
| Masaya Volcano(expression, activity, name, volcano, geology) |
| Mauna Loa(expression, activity, name, volcano, geology) |
| McDonald Islands(expression, activity, name, volcano, geology) |
| Metis Shoal(expression, activity, name, volcano, geology) |
| Monaco Bank(expression, activity, name, volcano, geology) |
| Monowai Seamount(expression, activity, name, volcano, geology) |
| Monte Burney(expression, activity, name, volcano, geology) |
| Morne Watt(expression, activity, name, volcano, geology) |
| Mount Adatara(expression, activity, name, volcano, geology) |
| Mount Akita-Komagatake(expression, activity, name, volcano, geology) |
| Mount Akutan(expression, activity, name, volcano, geology) |
| Mount Amukta(expression, activity, name, volcano, geology) |
| Mount Aniakchak(expression, activity, name, volcano, geology) |