Comondu-La Purisima

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 26°N
  • 111.92°W

  • 780 m
    2558 ft

  • 341012
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Comondu-La Purisima.

The Global Volcanism Program has no Weekly Reports available for Comondu-La Purisima.

The Global Volcanism Program has no Bulletin Reports available for Comondu-La Purisima.

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude
341012

Unknown - Evidence Uncertain

780 m / 2558 ft

26°N
111.92°W

Volcano Types

Volcanic field

Rock Types

Major
Trachyandesite / Basaltic trachy-andesite
Andesite / Basaltic Andesite
Basalt / Picro-Basalt

Tectonic Setting

Rift zone
Continental crust (> 25 km)

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
1,033
1,033
2,365
43,271

Geological Summary

The Comondú-La Purísima volcanic field, located in southern Baja California, west of the Sierra de la Giganta, dates back to the Miocene. However, the youthful morphology of some cinder cones suggested possible Holocene ages (Sawlan, 1991). The youngest lavas form blocky flows with flow ridges and are mostly located in the area between Comondú and the La Purísima river. Vents usually occur along NNW-trending faults, and many lava flows are offset, sometimes repeatedly, along grabens. Both basaltic and andesitic lava flows are present. The former are typically 5-10 m thick, and the latter are up to 60-80 m thick and form dense, glassy flows with subhorizontal fractures.

References

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography.

Bellon H, Aguillon-Robles A, Calmus T, Maury R C, Bourgois J, Cotten J, 2006. La Purisima volcanic field, Baja California Sur (Mexico): Miocene to Quaternary volcanism related to subduction and opening of an asthenospheric window. J Volc Geotherm Res, 152: 253-272.

Calmus T, Aguillon-Robles A, Maury R C, Bellon H, Benoit M, Cotten J, Bourgois J, Michaud F, 2003. Spatial and temporal evolution of basalts and magnesian andesites ("bajaites") from Baja California, Mexico: the role of slab melts. Lithos, 66: 77-105.

Haukwa C, Bodvarsson G S, Lippmann M J, Mainieri A, 1992. Preliminary reservoir engineering studies of the Miravalles geothermal field, Costa Rica. Proc 17th Stanford Geotherm Workshop, p 127-137.

Hausback B P, 1984. Cenozoic volcanic and tectonic evolution of Baja California Sur, Mexico. In: Frizzell V A Jr (ed) {Geology of the Baja California Peninsula}, SEPM, 39: 219-236.

Saunders A D, Rogers G, Marriner G F, Terrell D J, Verma S P, 1987. Geochemistry of Cenozoic volcanic rocks, Baja California, Mexico: implications for the petrogenesis of post-subduction magmas. J Volc Geotherm Res, 32: 223-245.

Sawlan M G, 1991. Magmatic evolution of the Gulf of California rift. In: Dauphin J P and Simoneit B A (eds) {The Gulf and Peninsular Province of the Californias}, Amer Assoc Petrol Geol Mem, 47: 301-369.

The Global Volcanism Program is not aware of any Holocene eruptions from Comondu-La Purisima. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Comondu-La Purisima 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.


Cones

Feature Name Feature Type Elevation Latitude Longitude
Agua Grande, Cerro Pyroclastic cone 670 m 26° 4' 0" N 111° 53' 0" W
Aguilillas, Cerro Pyroclastic cone 470 m 25° 54' 0" N 111° 50' 0" W
Datil, Cerro el Pyroclastic cone 690 m 26° 10' 0" N 111° 55' 0" W
Jesús de Monte, Cerro Pyroclastic cone 660 m 26° 8' 0" N 111° 55' 30" W
Joya, Cerro la Pyroclastic cone 690 m 26° 7' 0" N 111° 46' 0" W
Junta, Cerro la Pyroclastic cone 330 m 25° 47' 30" N 111° 56' 0" W
Pelón, Cerro Pyroclastic cone 590 m 25° 58' 0" N 111° 49' 0" W
Yerbabuena, Cerro la Pyroclastic cone 780 m 26° 8' 0" N 111° 54' 0" W

Photo Gallery


A young cinder cone rises above cactus-covered terrain NE of the town of La Purísima. The Comondú-La Purísima volcanic field, located in southern Baja California, west of the Sierra de la Giganta, has been active from the Miocene to the Quaternary. The youngest lavas form blocky flows with flow ridges and are mostly located in the area between Comondú and La Purísima river. Vents usually occur along NNW-trending faults, and many lava flows are offset, sometimes repeatedly, along grabens.

Photo by Brian Hausback, 1983 (California State University, Sacramento).

Smithsonian Sample Collections Database


A listing of samples from the Smithsonian collections will be available soon.

Affiliated Sites

Large Eruptions of Comondu-La Purisima Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
WOVOdat WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
EarthChem EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).
MODVOLC - HIGP MODIS Thermal Alert System Using infrared satellite Moderate Resolution Imaging Spectroradiometer (MODIS) data, scientists at the Hawai'i Institute of Geophysics and Planetology, University of Hawai'i, developed an automated system called MODVOLC to map thermal hot-spots in near real time. For each MODIS image, the algorithm automatically scans each 1 km pixel within it to check for high-temperature hot-spots. When one is found the date, time, location, and intensity are recorded. MODIS looks at every square km of the Earth every 48 hours, once during the day and once during the night, and the presence of two MODIS sensors in space allows at least four hot-spot observations every two days. Each day updated global maps are compiled to display the locations of all hot spots detected in the previous 24 hours. There is a drop-down list with volcano names which allow users to 'zoom-in' and examine the distribution of hot-spots at a variety of spatial scales.
MIROVA Middle InfraRed Observation of Volcanic Activity (MIROVA) is a near real time volcanic hot-spot detection system based on the analysis of MODIS (Moderate Resolution Imaging Spectroradiometer) data. In particular, MIROVA uses the Middle InfraRed Radiation (MIR), measured over target volcanoes, in order to detect, locate and measure the heat radiation sourced from volcanic activity.