Morne Trois Pitons

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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 15.37°N
  • 61.33°W

  • 1387 m
    4549 ft

  • 360100
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Morne Trois Pitons.

 Available Weekly Reports

There are no Weekly Reports available for Morne Trois Pitons.

Summary of eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
0920 ± 50 years Unknown Confirmed   Radiocarbon (uncorrected) Micotrin?
0790 ± 50 years Unknown Confirmed   Radiocarbon (uncorrected) Micotrin?

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.

Lindsay J M, Smith A L, Roobol M J, Stasiuk M V, 2005b. Dominica. In: Lindsay J M, Robertson R E A, Shepherd J B, Ali S (eds). {Volcanic Hazard Atlas of the Lesser Antilles}, Trinidad and Tobago, Seismic Res Unit, Univ West Indies, p 1-47.

Lindsay J M, Trumbull R B, Siebel W, 2005c. Geochemistry and petrogenesis of late Pleistocene to Recent volcanism in southern Dominica, Lesser Antilles. J Volc Geotherm Res, 148: 253-294.

Newhall C G, Dzurisin D, 1988. Historical unrest at large calderas of the world. U S Geol Surv Bull, 1855: 1108 p, 2 vol.

Robson G R, Tomblin J, 1966. West Indies. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 20: 1-56.

Roobol M J, Wright J V, Smith A L, 1983. Calderas of gravity-slide structures in the Lesser Antilles Island Arc?. J Volc Geotherm Res, 19: 121-134.

Seismic Research Unit, 2001. Seismo-volcanic activity in Dominica (updated July 11, 2001). Seismic Res Unit, Univ West Indies (

Shepherd J B, 2001. Volcanoes of the eastern Caribbean: past activity and future hazards. Paper presented at the Workshop on Volcanic and Seismic Hazards in the eastern Caribbean, May 28- June 1, 2001, 57 p.

Shepherd J B, 1989. Eruptions, eruption precursors and related phenomena in the Lesser Antilles. In: Latter J H (ed), {Volcanic Hazards - Assessment and Monitoring}, Berlin: Springer-Verlag, p 292-311.

Sigurdsson H, 1972. Partly-welded pyroclast flow deposits in Dominica, Lesser Antilles. Bull Volc, 36: 148-163.

Two large lava-domes complexes, Morne Trois Pitons and Micotrin, rise NE of the capital city of Roseau in central Dominica. Micotrin (Morne Macaque) dome lies immediately south of the larger 1387-m-high Morne Trois Pitons; small lakes are located in the saddle between the two domes and on the eastern flank of Micotrin. The domes are located along the margin of a large semi-circular depression on the western coast of central Dominica, whose origin has been variously attributed to caldera collapse, gravity sliding, or the juxtaposition of several independent volcanic centers. The area is the source of the voluminous, mostly submarine Roseau Tuff, a thick sequence of pyroclastic flows erupted between about 40,000 and 25,000 years ago. It is considered to have originated from calderas at Morne Trois Piton and Wotten Waven, the latter an elliptical NE-SW-trending caldera containing Microtin at its NE end. Explosive eruptions at the Trois Piton-Microtin complex producing pyroclastic flows continued into the late Pleistocene and Holocene. The youngest dated eruption took place about 800 CE, but other smaller eruptions may have occurred since.