| USA Arizona
- Aquarius Mountains region
- Castle Hot Springs
California
- Geysers-Clear Lake region
- Lassen Volcanic Park
- Long Valley Caldera
- Salton Sea
Colorado
- Creede Caldera (fossil geothermal system)
- Pagosa Springs
Hawai'i
- Puna, East Rift Zone
Idaho
- Mountain Home region
Nevada
- Dixie Valley region
- Geothermal Oil Fields, Central Nevada
New Mexico
- Ojo Caliente area
- Lucero Uplift region
- Valles Caldera, New Mexico
Oregon
- Old Maid Flat (Mt. Hood)
Utah
- Roosevelt Hot Springs
Washington
- Mount. St. Helens
|
- St. Lucia
- Qualibou Caldera (Sulphur Springs)
Mexico
- Various locations, including La Primavera
Guatemala
- Moyuta
- Amatitlan
- Zunil
- Tecuamburro Volcano
El Salvador
- Ahuachapan
Honduras
- Six geothermal areas
Costa Rica
- Miravalles and Rincon de la Vieja
Colombia
- Galeras Volcano
Ecuador
- Alcedo Volcano, Galapagos
France
- Soufrière de Guadeloupe
- Massif Central
Italy
- Campi Flegrei
- Vulcano
Greece
- Thira, Cycladic Islands
Japan
- Satsuma Iwo-jima Island
China
- Fuzhou area
New Zealand
- Mokai
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