IEDA / DECADE Detail

Data from the Global Volcanism Program of the Smithsonian Institution

Details for: Cuicocha

The scenic lake-filled Cuicocha caldera is located at the southern foot of the sharp-peaked Pleistocene Cotacachi stratovolcano (top center) about 100 km north of Quito. Farmer's fields encroach on the rim of the 3-km-wide caldera, which was created during a major explosive eruption about 3100 years ago. Dacitic lava domes form two forested islands in the caldera lake. Pyroclastic-flow deposits from the caldera-forming eruptions cover wide areas in now populated areas below the low-rimmed caldera. Photo by Patricio Ramon, 2003 (Instituto Geofisca, Escuela Politecnica Nacional).

Volcano Number:	352003
Volcano Name:	Cuicocha
Country:	Ecuador
Volcano Type:	Caldera
Last Eruption:	650
Elevation:	3246m
Tectonic Setting:	Subduction zone / Continental crust (> 25 km)
Pop. within 5km:	178815
Pop. within 10km:	178815
Pop. within 30km:	364146
Pop. within 100km:	3193683
Latitude:	0.308
Longitude:	-78.364

Eruption Data from the Global Volcanism Program of the Smithsonian Institution

Volcano Number	Volcano Name	Eruption Number	Activity Type	Explosivity Index Max	Start Evidence Method	Start Date
352003	Cuicocha	11391	Confirmed Eruption		Radiocarbon (uncorrected)	-2550
352003	Cuicocha	11392	Confirmed Eruption	5	Radiocarbon (uncorrected)	-1150
352003	Cuicocha	11393	Confirmed Eruption		Radiocarbon (uncorrected)	-950
352003	Cuicocha	11394	Confirmed Eruption		Radiocarbon (uncorrected)	650

Emissions Data from the Global Volcanism Program of the Smithsonian Institution No emissions data found for this volcano.

Data from the Earthchem Portal

Sample ID	LINK	Method	Material	Rock Class	Rock Name	Al₂O₃ WT%	CaO WT%	K₂O WT%	MgO WT%	MnO WT%	Na₂O WT%	P₂O₅ WT%	SiO₂ WT%	TiO₂ WT%	FeO Total WT%	Fe₂O₃ Total WT%	Total WT%	Ba PPM	Co PPM	Cr PPM	Cs PPM	Cu PPM	Dy PPM	Nb PPM	Ni PPM	Pb PPM	Rb PPM	Sc PPM	Sr PPM	U PPM	V PPM	Y PPM	Zn PPM	Zr PPM
MOJ 7	DETAILS	ICPAES	Rock	Igneous Intermediate Volcanic	Andesite	17.7	7.72	0.84	4.75	0.13	3.4	0.17	55.5	0.72		8.5	99.43	480	29	95			2.8	2.5	31		16	25	475		225	17.5		83
M5-740C	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Basalt	15.85	8.75	1.42	3.44	0.22	4.57	0.36	52.62	0.7		12.29	100			71					16
M5-740C	DETAILS	ICPAES	Rock	Igneous Mafic Volcanic	Basalt													54					2.81	0.57			29.61	31	345		366	16.9		53
IMB-39	DETAILS	XRF	Rock	Igneous Intermediate Volcanic	Andesite	17.93	7.24	0.91	3.14	0.13	3.73	0.2	60	0.54	6.18		100	416			0.51		2.59	2.94		5.57	13.5	16	727	0.95		14.6		72
IMB-39	DETAILS	ICPMS	Rock	Igneous Intermediate Volcanic	Andesite															21		44			13						122		75
MOJ 62A	DETAILS	ICPAES	Rock	Igneous Intermediate Volcanic	Andesite	16.8	7.65	0.82	4.57	0.11	3.7	0.18	58	0.66		7.35	99.84	430	28	130			2.5	2.4	40		11.3	21.3	460		180	15.9		80
M5-300	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Basalt	11.54	17.48	0.11	12.48	0.2	0.33	0.03	46.34	0.23		11.12	99.86			1915					365
M5-300	DETAILS	ICPAES	Rock	Igneous Mafic Volcanic	Basalt													7					1.14	0.51			1.21	36.9	37		227	8.5		17
CAY 13B	DETAILS	ICPAES	Rock	Igneous Intermediate Volcanic	Andesite	16.5	4.96	2.14	2.69	0.08	4.15	0.21	62.45	0.65		5.65	99.48	840	17	48			2.04	6.6	23			9.9	565		119	10.7		120
CAY 13B	DETAILS	AES	Rock	Igneous Intermediate Volcanic	Andesite																						56
CAY 74A	DETAILS	ICPAES	Rock	Igneous Felsic Volcanic	Dacite	16.25	4.02	2.2	1.83	0.08	3.84	0.15	63.9	0.53		4.56	97.36	1100	13	27			1.8	7.4	13			8.5	512		93	9.8		125
CAY 74A	DETAILS	AES	Rock	Igneous Felsic Volcanic	Dacite																						66.5
150-A	DETAILS	ICPAES	Rock	Igneous Felsic Volcanic	Rhyodacite	16.86	3.85	1.59	1.2	0.045	4.56	0.08	67.3	0.41		4.11	100	748	7.1	8.5			0.5	3.3	4.9			5.05	557		82	3.4		55.4
150-A	DETAILS	AES	Rock	Igneous Felsic Volcanic	Rhyodacite																						31.2
CAY 168A	DETAILS	ICPAES	Rock	Igneous Felsic Volcanic	Dacite	16.1	4.72	2.1	2.25	0.08	4.2	0.19	63.65	0.61		5.43	99.33	890	14	33			2.1	6.4	18			8.9	528		113	10.7		110
CAY 168A	DETAILS	AES	Rock	Igneous Felsic Volcanic	Dacite																						57.5
019-A	DETAILS	ICPAES	Rock	Igneous Felsic Volcanic	Rhyodacite	16.29	3.75	1.93	1.1	0.044	4.75	0.11	68.5	0.37		3.15	99.994	825	6.2	8.9			0.91	3	4			4.61	527		68.1	4.1		50.7
019-A	DETAILS	AES	Rock	Igneous Felsic Volcanic	Rhyodacite																						42.3
M5-456D	DETAILS	XRF	Rock	Igneous Intermediate Volcanic	Andesite	14.92	4.45	0.68	1.78	0.14	6.22	0.38	62.5	0.83		8.11	100			8					4
M5-456D	DETAILS	ICPAES	Rock	Igneous Intermediate Volcanic	Andesite													102					4.89	1.58			12.1	26	333		229	32.2		69
AN17	DETAILS	XRF	Rock	Igneous Intermediate Volcanic	Andesite	16.54	5.3	2.29	2.68	0.083	4.63	0.28	61.93	0.788	5.48		100	966						7.7	21		60	10	788		127	12		153
CAY 84	DETAILS	ICPAES	Rock	Igneous Felsic Volcanic	Dacite	15.95	4.6	2.27	2.3	0.07	4.11	0.17	65.3	0.6		4.87	100	990	14	30			1.85	7.5	20			7.9	562		100	9		110
CAY 84	DETAILS	AES	Rock	Igneous Felsic Volcanic	Dacite																						64.5
M5-871	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Basalt	12.91	6.87	0.11	5.61	0.22	4.43	0.14	50.73	1.76		16.82	99.6			28					57
M5-871	DETAILS	ICPAES	Rock	Igneous Mafic Volcanic	Basalt													32					6.22	6.53			1.31	50.3	87		465	37.9		100

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Data from the SESAR Database

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

Data from the MaGa Database

Location: Cuicocha caldera (View Details at MaGa DB)

Description: The Cuicocha volcanic caldera lake is located on the Western Cordillera, some 110 km to the north of Ecuador's capital Quito and represents besides Quilotoa, one of the two active volcanic lakes in Ecuador. Post-volcanic activities are expressed by the emission of volcanic gases in different parts of the lake in the form of gas bubbles and some dead vegetation as result of these gases, in the northernmost side of the eastern volcanic island. An input of hydrothermalwater and gas emission in the form of gas bubbles rising from the lake bottom are the most recent volcanic activity reported in Cuicocha.

Hazard Description: not reported

Type: lake

Region: Imbabura Province, Ecuador

Country: Ecuador

Volcanic Complex: Cuicocha caldera

Gas Flux Data:

Measurement Name	Detail	Specie	Flux	Std. Dev.	Unit of Measure
Cuicocha_01072006	Detail	CO2	106	0	Mg/d