Aguajito, El
Gulf of California Rift Volcanic Province, Mexico. This page separates the permanent volcano catalogue, historical eruption records, and selective weekly activity reports.
- Coordinates
- 27.55° N, 112.55° W
- Elevation
- 1,274 m
- Last recorded eruption
- Not supplied
- Historical eruption records
- 0
- Primary type
- Caldera
- Evidence
- Not supplied
- GVP database
- 5.4.0
- Catalogue revision
- Revision 1
Volcano profile
- Volcanic landform
- Caldera
- Tectonic setting
- Not supplied
- Geologic epoch
- Pleistocene
- Major rock type
- Not supplied
- Region
- Eastern Pacific Volcanic Regions
- Subregion
- Gulf of California Rift Volcanic Province
Geological summary
El Aguajito caldera (also known as Santa Ana caldera) is located along the Gulf of California immediately NE of Tres Vírgenes volcano and NW of La Reforma caldera. The rim of the approximately 10-km-wide resurgent caldera is not exposed, but an arcuate line of andesitic-to-rhyolitic lava domes covers its northern margin. Formation of the rhyolitic caldera was associated with the eruption of ignimbrites, K-Ar dated at 0.76 +/- 0.06 million years ago (Ma), most of which were deposited in the Gulf of California. Rhyolitic lava domes on the northern margin have been dated at 0.5 +/- 0.04 Ma; dacitic lava domes on the southern side of the caldera appear to be older. The regional NNE-SSW-trending Cimarron fault cuts across the center of the caldera. Hot springs are located along the southern caldera margin, and active seismicity was noted during geothermal exploration.
Separate activity dataset
Weekly volcanic activity reports
Smithsonian/USGS weekly reports are selective and preliminary. They are not a comprehensive list of all eruptions or volcanic activity.
No weekly report appears on this page. Absence from the weekly report does not establish an absence of volcanic activity.
Historical catalogue records
Eruption history
Dates can be approximate, incomplete, or BCE. These are historical catalogue observations, not a statement about present activity.
No historical eruption records appear on this page.
Source and attribution
Source: Data: Smithsonian Institution Global Volcanism Program, Volcanoes of the World.
View the original Smithsonian GVP recordGlobal Volcanism Program, 2026. Volcanoes of the World 5.4.0.
The GVP database is scientific documentation that changes as evidence is reviewed. Historical dates may be approximate or uncertain. This platform is not an official emergency-warning service. This entry is from GVP's preliminary Pleistocene volcano list and may be revised.
Read the GVP terms of useData freshness
- Source updated
- Not supplied
- Retrieved
- 11 Oct 2026, 13:07 UTC
- GVP database version
- 5.4.0
- Catalogue revision
- 1
Source-update and retrieval times describe this catalogue record. Each weekly report carries its own publication date and preliminary status.