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There are no activity reports for Las Pilas.
Summary of eruption dates and Volcanic Explosivity Indices (VEI).
|Start Date||Stop Date||Eruption Certainty||VEI||Evidence||Activity Area or Unit|
|1954 Oct 29||1954 Oct 31||Confirmed||2||Historical Observations||El Hoyo|
|1952 Oct 23||1952 Dec||Confirmed||1||Historical Observations||El Hoyo|
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.
Badilla E, Chaves I, Linkimer L, Zuniga H, Alvarado G E, 2001. Fotogeologia de los complejos volcanicos El Hoyo y Asososca (Nicaragua). Rev Geol Amer Central, 24: 79-86.
Carr M J, 1984. Symmetrical and segmented variation of physical and geochemical characterisitics of the Central American volcanic front. J Volc Geotherm Res, 20: 231-252.
IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..
Incer J, 1987. . (pers. comm.).
McBirney A R, 1955a. Thoughts on the eruption of the Nicaraguan volcano Las Pilas. Bull Volc, 17: 113-118.
Mooser F, Meyer-Abich H, McBirney A R, 1958. Central America. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 6: 1-146.
Sapper K, 1925. The Volcanoes of Central America. Halle: Verlag Max Niemeyer, 144 p.
van Wyk de Vries B, 1993. Tectonics and magma evolution of Nicaraguan volcanic systems. Unpublished PhD thesis, Open Univ, Milton Keynes, 328 p.
Las Pilas volcanic complex, overlooking Cerro Negro volcano to the NW, includes a diverse cluster of cones around the central vent, Las Pilas. A N-S-trending fracture system cutting across 1088-m-high Las Pilas (El Hoyo) is marked by numerous well-preserved flank vents, including maars, that are part of a 30-km-long volcanic massif. The Cerro Negro chain of cinder cones is listed separately in this compilation because of its extensive historical eruptions. The lake-filled Asososca maar is located adjacent to the conical 818-m-high Cerro Asososca cone on the southern side of the fissure system, south of the axis of the Marrabios Range. Two small maars west of Lake Managua are located at the southern end of the fissure. Aside from a possible eruption in the 16th century, the only historical eruptions of Las Pilas took place in the 1950s from a fissure that cuts the eastern side of the 700-m-wide summit crater and extends down the north flank.