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There are no activity reports for Jocotitlán.
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There are no Weekly Reports available for Jocotitlán.
Summary of eruption dates and Volcanic Explosivity Indices (VEI).
|Start Date||Stop Date||Eruption Certainty||VEI||Evidence||Activity Area or Unit|
|1270 ± 75 years||Unknown||Confirmed||Radiocarbon (uncorrected)|
|7740 BCE ± 75 years||Unknown||Confirmed||Radiocarbon (uncorrected)|
The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.
Capra L, Macias J L, Scott K M, Abrams M, Garduno-Monroy V H, 2002. Debris avalanches and debris flows transformed from collapses in the Trans-Mexican Volcanic Belt, Mexico - behavior, and implications for hazard assessment. J Volc Geotherm Res, 113: 81-110.
Macias J L, Garcia A, Arce J L, Siebe C, Espindola J M, Komorowski J-C, Scott K, 1997b. Late Pleistocene-Holocene cataclysmic eruptions at Nevado de Toluca and Jocotitlan volcanoes, central Mexico. Brigham Young Univ Geol Studies, 42(1): 493-528.
Macias J L, Garcia A, Arce J L, Siebe C, Espindola J M, Komorowski J-C, Scott K, 1997a. Late Pleistocene-Holocene cataclysmic eruptions at Nevado de Toluca and Jocotitlan volcanoes, central Mexico. IAVCEI Puerto Vallarta, Mexico Plenary Assembly, Excursion no. 14 Field Guide, p. 1-63.
Siebe C, Komorowski J-C, Sheridan M F, 1992. Morphology and emplacement of an unusual debris-avalanche deposit at Jocotitlan volcano, central Mexico. Bull Volc, 54: 573-589.
Jocotitlán is an isolated composite volcano that rises 1300 m above the Toluca basin 60 km WNW of Mexico City. The 3900-m-high 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 of the volcano 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 sq km 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.