Las Lajas

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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 12.3°N
  • 85.73°W

  • 926 m
    3037 ft

  • 344133
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Las Lajas.

 Available Weekly Reports

There are no Weekly Reports available for Las Lajas.

There are no Holocene eruptions known for Las Lajas. If this volcano has had large eruptions prior to 10,000 years ago, information might be found in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

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.

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

McBirney A R, Williams H, 1965. Volcanic history of Nicaragua. Univ Calif Pub Geol Sci, 55: 1-65.

Parsons Corporation, 1972. The Geology of Western Nicaragua. Nicaragua Tax Improvement and Natural Resources Inventory Project, Final Technical Rpt, v. IV.

Plank T, Balzer V, Carr M, 2002. Nicaraguan volcanoes record paleoceanographic changes accompanying closure of the Panama gateway. Geology, 30: 1087-1090.

van Wyk de Vries B, 1999. . (pers. comm.).

Las Lajas is the largest volcano of possible Quaternary age east of the Nicaraguan graben. The broad, low, basaltic shield volcano is truncated by a 7-km-wide, steep-walled caldera. The 650-m-deep caldera is breached by a narrow canyon on the SE side that drains into Lake Nicaragua. Five coalescing andesitic-dacitic lava domes are located in the center of the caldera, and additional domes are present on the outer flanks. Las Lajas was considered to be of Holocene age on the basis of youthful morphology (McBirney and Williams, 1965), however Plank et al. (2002) obtained three radiometric dates of Miocene age, and the main edifice may be older than previously thought. Van Wyk de Vries (1999, pers. comm.) earlier noted that Las Lajas itself was of probable Pleistocene age, but that youthful cinder cones on the flanks are similar to those of the Nejapa alignment and may be of Holocene age.