Reigolil-Pirihueico Fault

The Reigolil-Pirihueico Fault (Spanish: Falla Reigolil-Pirihueico) is a second-order geological fault located in the Chilean and Argentine Andes. As the name implies it runs from Pirihueico Lake to Reigolil Valley. Reigolil-Pirihueico Fault run in north-south direction and is roughly parallel to the larger Liquiñe-Ofqui Fault which is located 15 to 20 km west of it to which it is considered a branch of. East of Reigolil-Pirihueico Fault, close or along the Argentina-Chile boundary, are a string of volcanoes pliocene to quaternary volcanoes; Lanín, Pirihueico, Huanquihué, Quelguenco and Chihuío.

Geographically the fault is mostly inside two Chilean communes, Panguipulli and Curarrehue. Settlements above the fault include the hamlet of Puerto Pirihueico and the town of Curarrehue.

Geology of Chile
Terranes	Arequipa-Antofalla Chilenia Chiloé Cuyania Fitz Roy Madre de Dios Mejillonia Patagonia
Sedimentary formations and groups	Cenozoic Abanico Formation Azapa Formation Caleta Herradura Formation Cola de Zorro Formation Coquimbo Formation Cura-Mallín Formation Estratos de Pupunahue Estratos de San Pedro Farellones Formation Lacui Formation La Portada Formation Lebu Group Malleco Formation Navidad Formation Oxaya Formation Ranquil Formation Santo Domingo Formation Traiguén Formation Trapa-Trapa Formation Tubul Formation Mesozoic La Negra Formation Pan de Azúcar Formation Quiriquina Formation Tobífera Formation Toqui Formation Vinita Formation Way Group Zapata Formation
Batholiths	Coastal Batholith of central Chile Elqui-Limarí Batholith North Patagonian Batholith Panguipulli Batholith South Patagonian Batholith Tierra del Fuego Batholith Vicuña Mackenna Batholith
Metamorphic complexes	Bahía Mansa Metamorphic Complex Belén Metamorphic Complex Chañaral Epimetamorphic Complex Choapa Metamorphic Complex Chonos Metamorphic Complex Cordillera Darwin Metamorphic Complex Eastern Andes Metamorphic Complex Puerto Edén Igneous and Metamorphic Complex Punta de Choros Metamorphic Complex Quebrada del Carrizo Metamorphic Complex Trafún Metamorphic Complex Tierra del Fuego Igneous and Metamorphic Complex
Faults	Atacama Fault Domeyko Fault Futrono Fault Gastre Fault Lanalhue Fault Liquiñe-Ofqui Fault Magallanes-Fagnano Fault Pichilemu Fault Reigolil-Pirihueico Fault San Ramón Fault Valeriano Fault