Laguna Aramuaca

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 13.428°N
  • 88.105°W

  • 181 m
    594 ft

  • 343101
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Laguna Aramuaca.

The Global Volcanism Program has no Weekly Reports available for Laguna Aramuaca.

The Global Volcanism Program has no Bulletin Reports available for Laguna Aramuaca.

A solitary, 1-km-wide, lake-filled maar, Laguna Aramuaca, occupies a low-lying area about 10 km SE of the city of San Miguel. The Pan-American highway swings around the south side of the maar immediately north of the Río Grande de San Miguel. Laguna Aramuaca was mapped as Holocene by Weber and Wiesemann (1978), but has not been studied in detail. The low rim of the maar rises about 50-100 m above the countryside and reaches only 181 m above sea level. Spectacular pyroclastic-surge deposits are exposed by quarries near the rim of the maar.

The Global Volcanism Program is not aware of any Holocene eruptions from Laguna Aramuaca. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Laguna Aramuaca page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

The Global Volcanism Program has no synonyms or subfeatures listed for Laguna Aramuaca.

Bedded pyroclastic-surge deposits are exposed in a quarry at Laguna de Aramuaca, SE of the city of San Miguel. Conical San Miguel volcano rises 18 km to the west in the right background. Note the person in the center for scale.

Photo by Giuseppina Kysar, 1999 (Smithsonian Institution).
A quarry at Laguna de Aramuaca exposes a roughly 10-m-high section of thinly bedded pyroclastic-surge layers. Despite its immediate proximity to the Pan-American highway, this spectacular maar remains to be studied in detail.

Photo by Lee Siebert, 1999 (Smithsonian Institution).
A solitary, 600-m-wide lake, Laguna Aramuaca, occupies a low-lying area about 10 km SE of the city of San Miguel. The low northern wall of the maar is seen here from the southern rim of the 1-km-wide crater. The Pan-American highway swings around the south side of the maar, which was erupted through sediments immediately north of the Río Grande de San Miguel. The rim of the maar rises about 50-100 m above the countryside and reaches only 181 m above sea level.

Photo by Lee Siebert, 1999 (Smithsonian Institution).
The low SW rim of Aramuaca maar is reflected in the waters of 600-m-wide Laguna de Aramuaca. The maar was erupted through sediments in a plain north of the Río Grande de San Miguel.

Photo by Giuseppina Kysar, 1999 (Smithsonian Institution).

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

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Weber H S, Wiesemann G, 1978. Mapa Geologico de la Republica de El Salvador/America Central. Bundesanstalt fur Geowissenschaften und Rohstoffe, Hannover, Germany, 1:100,000 scale geologic map in 6 sheets.

Volcano Types

Maar

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

Major
No Data (checked)

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
15,772
132,109
699,308
3,009,012

Affiliated Databases

Large Eruptions of Laguna Aramuaca 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).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.