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Los Azufres

Photo of this volcano
  • Mexico
  • México and Central America
  • Caldera
  • Pleistocene
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 19.85°N
  • 100.63°W

  • 3400 m
    11155 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.

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.

Eruptive History

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).

Deformation History

There is no Deformation History data available for Los Azufres.

Emission History

There is no Emissions History data available for Los Azufres.

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.
GVP Map Holdings

The maps shown below have been scanned from the GVP map archives and include the volcano on this page. Clicking on the small images will load the full 300 dpi map. Very small-scale maps (such as world maps) are not included. The maps database originated over 30 years ago, but was only recently updated and connected to our main database. We welcome users to tell us if they see incorrect information or other problems with the maps; please use the Contact GVP link at the bottom of the page to send us email.


Title: Valle de Bravo
Publisher: INEGI
Country: Mexico
Year: 1998
Map Type: Topographic
Scale: 1:50,000
Map of Valle de Bravo

Title: Carta Geolica de la Republica Mexicana
Publisher: Recursos Minerales and Institute de Gelogia
Country: Mexico
Year: 1992
Map Type: Geology
Scale: 1:2,000,000
Map of Carta Geolica de la Republica Mexicana

Title: Morelia
Publisher: SPP & INEGI
Country: Mexico
Year: 1986
Map Type: Topographic
Scale: 1:250,000
Map of Morelia

Title: Mexico
Publisher: DMA Aerospace Center
Country: Mexico
Year: 1985
Series: ONC
Map Type: Topographic
Scale: 1:1,000,000
Map of Mexico

Title: Ciudad de Mexico
Publisher: SPP & INEGI
Country: Mexico
Year: 1984
Map Type: Topographic
Scale: 1:250,000
Map of Ciudad de Mexico

Title: Tejupilco de Hidalgo
Publisher: CETENAL
Country: Mexico
Year: 1982
Map Type: Geology
Scale: 1:50,000
Map of Tejupilco de Hidalgo

Title: Estado de Oaxaca
Publisher: USGS /SAHOP
Country: Mexico
Year: 1982
Series: SAHOP Landsat
Map Type: Satellite
Scale: 1:1,000,000
Map of Estado de Oaxaca

Title: Estado de Guanajuato
Publisher: USGS /SAHOP
Country: Mexico
Year: 1982
Series: SAHOP Landsat
Map Type: Satellite
Scale: 1:500,000
Map of Estado de Guanajuato

Title: Estado de Michoacan de Ocampo
Publisher: USGS /SAHOP
Country: Mexico
Year: 1982
Series: SAHOP Landsat
Map Type: Satellite
Scale: 1:500,000
Map of Estado de Michoacan de Ocampo

Title: Estado de Guerrero
Publisher: USGS /SAHOP
Country: Mexico
Year: 1982
Series: SAHOP Landsat
Map Type: Satellite
Scale: 1:500,000
Map of Estado de Guerrero

Title: Estado de Mexico
Publisher: USGS /SAHOP
Country: Mexico
Year: 1982
Series: SAHOP Landsat
Map Type: Satellite
Scale: 1:250,000
Map of Estado de Mexico

Title: Estado de Morelos
Publisher: USGS /SAHOP
Country: Mexico
Year: 1982
Series: SAHOP Landsat
Map Type: Satellite
Scale: 1:250,000
Map of Estado de Morelos

Title: Ixtapan de la Sal
Publisher: Comision de Estudios del Territorio Nacional
Country: Mexico
Year: 1980
Map Type: Geology
Scale: 1:50,000
Map of Ixtapan de la Sal

Title: Volcan Nevado de Toluca
Publisher: Comision de Estudios del Territorio Nacional
Country: Mexico
Year: 1980
Map Type: Geology
Scale: 1:50,000
Map of Volcan Nevado de Toluca
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, and may be availble for research (contact the Rock and Ore Collections Manager). Catalog number links will open a window with more information.

Catalog Number Sample Description Lava Source Collection Date
NMNH 117450-45 Obsidian -- --
NMNH 117450-47 Obsidian -- --
External Sites