IEDA / DECADE Detail

Data from the Global Volcanism Program of the Smithsonian Institution

Details for: Wolf

Wolf, the highest volcano of the Galápagos Islands, is located near the equator at the N end of the archipelago's largest island, Isabela. The summit caldera is 5.5 x 7 km and 600 m deep, with recent lava flows covering the broad caldera floor. Prominent unvegetated lava flows are visible on the flanks to the sea. Wolf's 1797 eruption was the first documented in the Galápagos Islands. Photo by Lee Siebert, 1978 (Smithsonian Institution).

Volcano Number:	353020
Volcano Name:	Wolf
Country:	Ecuador
Volcano Type:	Shield
Last Eruption:	2015 CE
Elevation:	1710m
Tectonic Setting:	Rift zone / Oceanic crust (< 15 km)
Pop. within 5km:	165
Pop. within 10km:	165
Pop. within 30km:	237
Pop. within 100km:	1673
Latitude:	0.02
Longitude:	-91.35

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
353020	Wolf	11678	Confirmed Eruption	0		Lower SW flank	Surface Exposure	150
353020	Wolf	11679	Confirmed Eruption	0		Lower NE flank	Surface Exposure	950
353020	Wolf	11680	Confirmed Eruption	0		Lower NE and SE flanks	Surface Exposure	1450
353020	Wolf	11681	Confirmed Eruption				Historical Observations	1797
353020	Wolf	11682	Confirmed Eruption	2	?		Historical Observations	1800/8/21	1800/8/21
353020	Wolf	11683	Confirmed Eruption	1		ESE flank	Historical Observations	1925/4/11	1926/3/26
353020	Wolf	11684	Confirmed Eruption	0			Historical Observations	1933
353020	Wolf	11685	Confirmed Eruption				Historical Observations	1935
353020	Wolf	11686	Confirmed Eruption				Historical Observations	1938
353020	Wolf	11687	Confirmed Eruption	2		SE flank (1200 m)	Historical Observations	1948/1/24	1948/1/31
353020	Wolf	11688	Confirmed Eruption	0		SE flank (610 m)	Historical Observations	1963/3/4	1963/3/16
353020	Wolf	11689	Uncertain Eruption					1973/10/25	1973/10/29
353020	Wolf	11690	Confirmed Eruption	1		Caldera and SE flank (875 m)	Historical Observations	1982/8/28	1982/9/6
353020	Wolf	20897	Confirmed Eruption				Historical Observations	1859/8/26	1859/8/29
353020	Wolf	20898	Confirmed Eruption	0		Volcano Uncertain: either Wolf or Darwin	Historical Observations	1849/9/27	1849/9/27
353020	Wolf	21075	Confirmed Eruption	4			Historical Observations	2015/5/25	2015/6/2

Emissions Data from the Global Volcanism Program of the Smithsonian Institution

Emission ID	SO2 Kilotons	Start Date	End Date
312	1080	1982/08/29	1982/08/29
313	200	2015/05/25	2015/05/25

Data from the Earthchem Library

Title	Author	Release Date	DOI	Link
The emissions of CO2 and other volatiles from the world’s subaerial volcanoes The emissions of CO2 and other volatiles from the world’s subaerial volcanoes	Fischer, Tobias	2020-11-21	10.1594/IEDA/111445	Details

Data from the Earthchem Portal

Sample ID	LINK	Method	Material	Rock Class	Rock Name	SiO₂ WT%	TiO₂ WT%	Al₂O₃ WT%	FeO Total WT%	MnO WT%	MgO WT%	CaO WT%	Na₂O WT%	K₂O WT%	P₂O₅ WT%	Total WT%	Ba PPM	Cu PPM	Dy PPM	Ga PPM	Nb PPM	Rb PPM	Sc PPM	Sr PPM	V PPM	Y PPM	Zn PPM	Zr PPM	⁸⁷Sr / ⁸⁶Sr RATIO	¹⁴³Nd / ¹⁴⁴Nd RATIO
W95 26	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Basalt	48.63	2.96	14.68	11.81	0.19	6.18	11.35	3.02	0.43	0.31	99.56	112	130		22	15	5	40	370	361	30	98	192
W95 8	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Basalt	49.53	3.31	14.29	11.76	0.19	6.05	10.69	3.45	0.58	0.41	100	114	80		24	20	6	29	380	369	37	105	247
W95 27	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Basalt	49.21	3.3	14.22	11.58	0.19	6.11	10.88	3.25	0.52	0.38	99.64	106	121		22	17	6	36	371	378	36	99	231
W95 36	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Basalt	48.31	3.13	14.14	11.51	0.19	6	10.77	3.21	0.52	0.38	98.16	107	79		19	16	6	37	384	362	35	98	233
W95 20	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Basalt	48.53	3.05	14.24	11.3	0.19	6.26	11.09	3.16	0.5	0.36	98.68	98	74		24	17	6	35	388	352	32	93	218
W95 75	DETAILS	SIMS	Rock	Igneous Mafic Volcanic	Basalt														6.03
W95 75	DETAILS	TIMS	Rock	Igneous Mafic Volcanic	Basalt																								0.70276	0.513031
W95 75	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Basalt	49.36	2.32	18.37	8.91	0.14	5.91	12.5	2.76	0.37	0.29	100	82	78		21	13	3	35	418	273	27		170
W95 24	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Basalt	48.97	2.9	16.96	10.39	0.17	4.9	11.38	3.18	0.49	0.34	99.68	108	89		20	15	6	30	415	334	32	89	211
W95 2	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Basalt	49.42	3.22	14.49	11.76	0.19	6.17	11	3.42	0.54	0.38	100	112	88		21	18	5	49	384	376	34	103	224
W95 34	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Basalt	49.23	3.21	14.25	11.98	0.19	5.95	10.65	3.35	0.56	0.41	99.78	105	104		24	19	7	34	373	380	38	105	252
W95 4	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Basalt	49.13	3.23	14.23	11.64	0.19	6.11	10.87	3.44	0.57	0.39	99.8	94	76		24	19	7	39	380	366	36	102	236
W95 50	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Basalt	48.16	3.03	14.05	12.08	0.19	6.19	11.04	3.03	0.51	0.34	98.62	123	106		24	18	5	34	388	359	31	97	209
W95 56	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Basalt	48.48	3.1	14.44	11.85	0.19	6.27	11.02	3.09	0.49	0.36	99.29	105	123		24	17	5	37	380	363	33	94	220
W95 58	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Basalt	48.72	3.4	13.98	12.17	0.19	5.65	10.34	3.25	0.64	0.42	98.76	117	112		24	19	4	36	378	382	37	103	245

Data from the SESAR Database

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

Data from the MaGa Database

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