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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
Details
Download XLS
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
Activity Unit
Start Evidence Method
Start Date
End 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
Show 503 Results
Hide Results
Sample ID
LINK
Source
DB
Method
Material
Rock Class
Rock Name
Al
2
O
3
WT%
CaO
WT%
H
2
O
WT%
K
2
O
WT%
LOI
WT%
MgO
WT%
MnO
WT%
Na
2
O
WT%
P
2
O
5
WT%
SiO
2
WT%
TiO
2
WT%
FeO
WT%
FeO Total
WT%
Fe
2
O
3
WT%
Fe
2
O
3
Total
WT%
Total
WT%
Ag
PPM
As
PPM
Ba
PPM
Be
PPM
Bi
PPM
Co
PPM
Cr
PPM
Cs
PPM
Cu
PPM
Dy
PPM
Ga
PPM
ge
PPM
In
Mo
PPM
Nb
PPM
Ni
PPM
Pb
PPM
Rb
PPM
Sb
PPM
Sc
PPM
Sn
PPM
Sr
PPM
Ti
PPM
U
PPM
V
PPM
W
PPM
Y
PPM
Zn
PPM
Zr
PPM
10
Be / Be
RATIO
10
Be /
9
Be
RATIO
36
Cl / Cl
RATIO
E Nd
RATIO
176
Hf /
177
Hf
RATIO
40
K /
36
Ar
RATIO
176
Lu /
177
Hf
RATIO
143Nd/144Nd
RATIO
184
Os /
188
Os
RATIO
186
Os /
188
Os
RATIO
187
Os /
186
Os
RATIO
187
Os /
188
Os
RATIO
206Pb/204Pb
RATIO
206
Pb /
207
Pb
RATIO
206
Pb /
208
Pb
RATIO
207Pb/204Pb
RATIO
208Pb/204Pb
RATIO
208
Pb /
206
Pb
RATIO
87Rb/86Sr
RATIO
187
Re /
186
Os
RATIO
187
Re /
188
Os
RATIO
147
Sm /
144
Nd
RATIO
87Sr/86Sr
RATIO
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
1
2
3
4
5
6
7
8
9
. . .
21
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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