IEDA / DECADE Detail

Data from the Global Volcanism Program of the Smithsonian Institution

Details for: Watt, Morne

Fumarolic clouds mark the Valley of Desolation and Boiling Lake thermal areas, NE of Morne Watt (Watt Mountain) volcano in SE Dominica. The Valley of Desolation and the Boiling Lake are major tourist attractions within the national park east of Roseau. A major eruption from Morne Watt produced pyroclastic flows about 930 years ago. The only historical eruptions on the island of Dominica were a moderately large phreatic explosion at the Valley of Desolation thermal area in 1880 and a smaller phreatic explosion in July 1997. Photo by Paul Jackson, 1998 (Seismic Research Unit, University of West Indies).

Volcano Number:	360101
Volcano Name:	Watt, Morne
Country:	Dominica
Volcano Type:	Stratovolcano(es)
Last Eruption:	1997 CE
Elevation:	1224m
Tectonic Setting:	Subduction zone / Oceanic crust (< 15 km)
Pop. within 5km:	1818
Pop. within 10km:	35821
Pop. within 30km:	63178
Pop. within 100km:	545352
Latitude:	15.307
Longitude:	-61.305

Eruption Data from the Global Volcanism Program of the Smithsonian Institution

Volcano Number	Volcano Name	Eruption Number	Activity Type	Explosivity Index Max	Explosivity Index Modifier	Activity Area	Start Evidence Method	Start Date	End Date
360101	Watt, Morne	12370	Confirmed Eruption			NE of Watt Mtn (Valley of Desolation)	Radiocarbon (uncorrected)	-1800
360101	Watt, Morne	12371	Confirmed Eruption			NE of Watt Mtn (Valley of Desolation)	Radiocarbon (uncorrected)	-950
360101	Watt, Morne	12372	Confirmed Eruption			West flank of Morne Watt	Radiocarbon (uncorrected)	640
360101	Watt, Morne	12373	Confirmed Eruption	2	?	NE of Watt Mtn (Valley of Desolation)	Historical Observations	1880/1/4	1880/1/4
360101	Watt, Morne	12374	Confirmed Eruption	1		NE of Watt Mtn (Valley of Desolation)	Historical Observations	1997/7/15	1997/7/15

Emissions Data from the Global Volcanism Program of the Smithsonian Institution

Sorry. No emissions data found for this volcano.

Data from the Earthchem Library

Sorry. No data exist for this volcano in the EarthChem Library.

Data from the Earthchem Portal

Sample ID	LINK	Method	Material	Rock Class	Rock Name	SiO₂ WT%	TiO₂ WT%	Al₂O₃ WT%	Fe₂O₃ WT%	FeO Total WT%	MnO WT%	MgO WT%	CaO WT%	Na₂O WT%	K₂O WT%	P₂O₅ WT%	Total WT%	Ba PPM	Cr PPM	Cs PPM	Dy PPM	Ga PPM	Nb PPM	Ni PPM	Pb PPM	Rb PPM	Sc PPM	Sr PPM	Ti PPM	U PPM	V PPM	Y PPM	Zn PPM	Zr PPM	⁸⁷Sr / ⁸⁶Sr RATIO	¹⁴³Nd / ¹⁴⁴Nd RATIO	²⁰⁶Pb / ²⁰⁴Pb RATIO	²⁰⁷Pb / ²⁰⁴Pb RATIO	²⁰⁸Pb / ²⁰⁴Pb RATIO
D046.4	DETAILS	TIT	Rock	Igneous Intermediate Volcanic	Andesite					0.66							0.66
D046.4	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	0.11	12.3	3.53	41.3		0.43	2.39					60.06
D046.4	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	49.5		31.9					15.5	2.75	0.11		99.76
D046.4	DETAILS	TIT	Rock	Igneous Intermediate Volcanic	Andesite					0.65							0.65
D046.4	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	51.8		30.3					13.8	3.8	0.11		99.81
D046.4	DETAILS	TIT	Rock	Igneous Intermediate Volcanic	Andesite					38.8							38.8
D046.4	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	0.01	47.2	0.18	13.1		0.62	2.99					64.1
D046.4	DETAILS	TIT	Rock	Igneous Intermediate Volcanic	Andesite					36.5							36.5
D046.4	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	51.2	0.24	1.26			0.96	20.7	1.21	0.04			75.61
D046.4	DETAILS	TIT	Rock	Igneous Intermediate Volcanic	Andesite					23.3							23.3
D046.4	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	51.9	0.25	1.74			0.84	20	1.42	0.11			76.26
D046.4	DETAILS	TIT	Rock	Igneous Intermediate Volcanic	Andesite					23.1							23.1
D046.4	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	51.2	0.61	2.61			0.35	15	19	0.27			89.04
D046.4	DETAILS	TIT	Rock	Igneous Intermediate Volcanic	Andesite					10.5							10.5
D046.4	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	50.7	0.59	2.68			0.38	14.3	18.6	0.32			87.57
D046.4	DETAILS	TIT	Rock	Igneous Intermediate Volcanic	Andesite					11.5							11.5
D046.4	DETAILS	MS	Rock	Igneous Intermediate Volcanic	Andesite																														0.704326	0.512781	19.378	15.722	39.127
D046.4	DETAILS	XRF	Rock	Igneous Intermediate Volcanic	Andesite	53.58	0.8	18.49	8.81		0.17	4.37	9.18	2.87	0.85	0.12	99.24	144								20		226			247		65	63
DM-20.1	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	69.5	0.24	11.44		1.44	0	0.26	1.86	3.64	2.73		91.11
DM-20.1	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	71.75	0.27	11.59		1.86	0.05	0.24	1.81	3.74	2.82		94.13
DM-20.1	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	69.27	0.22	11.43		1.88	0	0.27	1.68	3.63	2.62		91
DM-20.1	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	70.25	0.24	12.1		1.76	0.11	0.27	2.31	3.58	2.66		93.28
DM-20.1	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	69.1	0.13	11.3		1.65	0.28	0.07	1.65	3.38	2.63		90.19
DM-20.1	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	71.83	0.05	11.55		1.89	0.07	0.08	1.64	3.56	2.72		93.39
DM-2.11	DETAILS	ICPMS_LA	Rock	Igneous Intermediate Volcanic	Andesite													278.736	9.41633	2.19714	3.30666	16.5281	3.08142	13.869	11.5123	49.261	19.5313	231.811	3273.29	1.2649		19.6669

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Data from the SESAR Database

IGSN	Object Name	Object Type	Object Class	Material	Field Name	Link
NHB006H6F	NMNH 116271-8 (PET)	Individual Sample		Rock>Igneous	Basalt with olivine	Details

Data from the MaGa Database

Sorry. No data exist for this volcano in the MaGa database.