No recent eruptions are known. Pyroclastic-flow deposits (known as the Grand Savanne Ignimbrite) extend down the volcano as far as the coast.[3] The eruption that caused these deposits happened during the Quaternary period, and was one of just two Quaternary eruptions (with VEI of 6 or greater) in the Lesser Antilles.[14][15]
Two severe earthquake swarms in the nineteenth century (1841 and 1893) are attributed to Morne Diablotin,[16] although it's possible they may have originated Morne aux Diables.[3]
1234567"Global Volcanism Program | Morne Diablotins". Smithsonian Institution | Global Volcanism Program. Retrieved 2026-03-21.
↑Carey, Steven N.; Sigurdsson, Haraldur (1980). "The Roseau Ash: Deep-sea Tephra Deposits from a Major Eruption on Dominica, Lesser Antilles Arc". Journal of Volcanology and Geothermal Research. 7 (1–2): 67–86. Bibcode:1980JVGR....7...67C. doi:10.1016/0377-0273(80)90020-7.
12"Morne Diablotin National Park". (Official GANP Page). Retrieved 2026-03-20.
↑Imray, John (1868). Letter from John Imray to [Sir Joseph Dalton Hooker] from Dominica; 11 June 1868; four page letter comprising two images; folio 195. Royal Botanic Gardens, Kew: Archives: Directors' Correspondence.
↑O'Keefe, M. Timothy (2001), Caribbean Hiking: A Hiking and Walking Guide to Thirty of the Most Popular Islands, Celtcom, Inc., pp.100–101, ISBN0-89732-412-9
↑“Caribbean Hiking” by M. Timothy O’Keefe, Google Books