Los Azufres

Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 19.85°N
  • 100.63°W

  • 3400 m
    11152 ft

  • 341824
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Los Azufres.

The Global Volcanism Program has no Weekly Reports available for Los Azufres.

The Global Volcanism Program has no Bulletin Reports available for Los Azufres.

The Global Volcanism Program is not aware of any Holocene eruptions from Los Azufres. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Los Azufres page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Photo Gallery


Los Azufres is one of several silicic volcanic complexes with active geothermal systems that lie north of the axis of the Mexican Volcanic Belt. Located about 200 km NW of Mexico City, Los Azufres consists of a 18 x 20 km wide early Pleistocene caldera that was later partially filled by resurgent dacitic-to-rhyolitic lava domes. This view shows the Agua Fria fault and thermal features looking NE from Cerro Pizcuaro.

Photo by Pat Dobson, 1982 (Lawrence Berkeley National Laboratory).
See title for photo information.
Steam rises from the Lagunas de Los Azufres, a thermal area namesake of Los Azufres volcanic center. Hot springs and fumaroles at Los Azufres are located along a series of major east-west-trending faults. The geothermal reservoir at Los Azufres lies in andesitic rocks that are capped by younger, altered rhyolitic lava domes and flows. In 1998 the field was producing 88 MW of power, with the potential to more than double the electrical output.

Photo by Pat Dobson, 1982 (Lawrence Berkeley National Laboratory).
See title for photo information.
Los Azufres goethermal field has been producing electricity since 1982. A 5 MW power plant is located at well AZ-6, shown here, which descends to a depth of 900 m. The well is located in the southern (Tejamaniles) section of the geothermal field. Surface exposures here consist of the roughly 1-million-year-old Agua Fria rhyolitic rocks. Exploratory drilling began at Los Azufres in 1976. By 1998, 67 wells had been drilled in an area of 60 sq km, of which 33 were producing electricity.

Photo by Pat Dobson, 1982 (Lawrence Berkeley National Laboratory).
See title for photo information.

Smithsonian Sample Collections Database


The following 2 samples associated with this volcano can be found in the Smithsonian's NMNH Department of Mineral Sciences collections. Catalog number links will open a window with more information.

Catalog Number Sample Description
NMNH 117450-45 Obsidian
NMNH 117450-47 Obsidian

Affiliated Sites