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Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Jocotitlan
Jocotitlán rises above the Toluca basin and is seen here from the NW. This side of the edifice has a horseshoe-shaped escarpment that formed as a result of gravitational failure of the summit during the early Holocene. The conical hills of Cerro San Miguel (left) and Cerro la Cruz (center) are part of the resulting debris avalanche deposit that covers an 80 km2 area to the NE. Photo by José Macías, 1997 (Universidad Nacional Autónoma de México).
Volcano Number:
341062
Volcano Name:
Jocotitlan
Country:
Mexico
Volcano Type:
Stratovolcano
Last Eruption:
1270 CE
Elevation:
3900m
Tectonic Setting:
Subduction zone / Continental crust (> 25 km)
Pop. within 5km:
7220
Pop. within 10km:
84108
Pop. within 30km:
630469
Pop. within 100km:
24986674
Latitude:
19.73
Longitude:
-99.758
Details
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Jocotitlán is an isolated composite volcano that rises above the Toluca basin 60 km WNW of Mexico City. The volcano was constructed during the Pleistocene of andesitic-to-dacitic lava flows. A major obsidian-bearing dacitic Plinian eruption was followed by the emplacement of a dacitic lava-dome complex, accompanied by lava effusion, pumice-fall eruptions, and pyroclastic surges. The most prominent feature is a horseshoe-shaped escarpment open to the NE that formed as a result of gravitational failure of the summit during the early Holocene. The resulting debris-avalanche deposit covers an 80 km2 area to the NE. Lava dome emplacement accompanied by pyroclastic flows and surges subsequently filled much of the avalanche scarp. The latest known eruption occurred about 700 years ago and produced block-and-ash flows and pyroclastic surges.
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Eruption Data from the Global Volcanism Program of the Smithsonian Institution
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Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Sorry. No emissions data found for this volcano.
Data from the Earthchem Library
Sorry. No data exist for this volcano in the EarthChem Library.
Data from the Earthchem Portal
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Data from the SESAR Database
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Data from the MaGa Database
Sorry. No data exist for this volcano in the MaGa database.
Data from UNAVCO
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Data from USIEI
Sorry. This volcano is not covered by any USIEI projects
Data from IRIS FDSNWS
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