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The Global Volcanism Program has no activity reports for San Martin.
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The Global Volcanism Program has no Bulletin Reports available for San Martin.
Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).
|Start Date||Stop Date||Eruption Certainty||VEI||Evidence||Activity Area or Unit|
|[ 1932 Dec 31 ± 365 days ]||[ Unknown ]||Uncertain|
|[ 1838 ]||[ Unknown ]||Uncertain|
|[ 1797 ]||[ 1805 ]||Uncertain||2|
|1794 May||1796||Confirmed||2||Historical Observations|
|1793 Mar 2||1793 Dec||Confirmed||4||Historical Observations||Cinder cones in summit crater|
|1664 Jan 15 (?)||Unknown||Confirmed||3||Historical Observations||SE flank|
|[ 1534 (?) ]||[ Unknown ]||Uncertain|
|0890 ± 40 years||Unknown||Confirmed||Radiocarbon (uncorrected)|
|0480 ± 50 years||Unknown||Confirmed||Radiocarbon (uncorrected)|
|0380 ± 75 years||Unknown||Confirmed||Tephrochronology||South flank|
|0120 ± 200 years||Unknown||Confirmed||Radiocarbon (uncorrected)||South flank (Cerro Puntiagudo)|
|0150 BCE ± 300 years||Unknown||Confirmed||Tephrochronology||South flank|
|0750 BCE ± 40 years||Unknown||Confirmed||Radiocarbon (uncorrected)|
|1320 BCE ± 300 years||Unknown||Confirmed||Radiocarbon (uncorrected)||South flank (Cerro Mono Blanco)|
|2130 BCE ± 50 years||Unknown||Confirmed||Radiocarbon (uncorrected)|
|3440 BCE ± 50 years||Unknown||Confirmed||Radiocarbon (uncorrected)|
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.
|Tuxtla, Volcán de | San Martín Tuxtla|
|Feature Name||Feature Type||Elevation||Latitude||Longitude|
|Mono Blanco, Cerro||Pyroclastic cone||18° 28' 0" N||95° 8' 0" W|
|Nixtamalapan, Cerro||Pyroclastic cone|
|Puntiagudo, Cerro||Pyroclastic cone||18° 27' 0" N||95° 6' 0" W|
|Vaxin, Cerro||Pyroclastic cone|
|Vigía, Cerro||Pyroclastic cone|
|Feature Name||Feature Type||Elevation||Latitude||Longitude|
|Crocodrilos, Laguna||Maar||18° 26' 0" N||95° 6' 0" W|
|Nixtamalapan, Laguna||Maar||18° 26' 0" N||95° 6' 0" W|
|Volcán San Martín, part of the Tuxtla volcanic field, is a broad alkaline shield volcano on the coast of the Gulf of México. San Martín is elongated in a NW-SE direction. The summit and flanks of the 1650-m-high volcano are dotted with more than 250 pyroclastic cones and maars. The two largest historical eruptions took place in 1664 and 1793. The 1793 eruption occurred from two cinder cones in the 1-km-wide summit crater and produced widespread ashfall and lava flows that extended 3.5 km down the NE flank.
Photo by Steve Nelson, 1986 (Tulane University).
|The largest historical eruption of San Martín Tuxtla volcano took place in 1793. This drawing shows strombolian eruptions ejecting ash and incandescent bombs from a pyroclastic cone within the summit crater with the Gulf of Mexico in the background. The eruption began on March 2 and lasted until December. Periodic strong ash eruptions occurred from two cinder cones that grew within the 1-km-wide summit crater. Lava flowed through a breach in the rim of the summit crater for a distance of 3.5 km down the northern flank of the volcano.
Drawing from Archivo General de la Nación (México), courtesy of Larry Feldman.
|An aerial view from the SE shows pyroclastic cones on the flank of the massive San Martín Tuxtla volcano. More than 250 pyroclastic cones and maars dot the flanks of San Martín volcano. They are mostly located along a 40-km-long NW-trending zone parallel to the elongation of the massive shield volcano. Many clusters of cones are aligned in this same direction parallel to regional trends.
Photo by Hugo Delgado-Granados, 1997 (Universidad Nacional Autónoma de México).
A listing of samples from the Smithsonian collections will be available soon.
|Large Eruptions of San Martin||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.|