IEDA / DECADE Detail

Data from the Global Volcanism Program of the Smithsonian Institution

Details for: Akutan

The summit of Akutan volcano, one of the most active of the Aleutian arc, is truncated by a 2-km-wide caldera that contains a large cinder cone that rises above the caldera rim. It is seen here from the south in eruption on February 11, 1987. A small lake occupies part of the caldera floor. The caldera rim is breached narrowly on the north side. A lava flow in 1978 traveled through this gap to within 2 km of the sea. Photo by Jerry Chisum (Mark Airways), 1987 (courtesy of John Reeder, Alaska Div. Geology & Geophysical Surveys).

Volcano Number:	311320
Volcano Name:	Akutan
Country:	United States
Volcano Type:	Stratovolcano
Last Eruption:	1992 CE
Elevation:	1303m
Tectonic Setting:	Subduction zone / Intermediate crust (15-25 km)
Pop. within 5km:	0
Pop. within 10km:	24
Pop. within 30km:	233
Pop. within 100km:	4361
Latitude:	54.134
Longitude:	-165.986

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
311320	Akutan	19838	Confirmed Eruption	0			Historical Observations	1908/2/22
311320	Akutan	19993	Confirmed Eruption				Radiocarbon (corrected)	-7620
311320	Akutan	19994	Confirmed Eruption				Radiocarbon (uncorrected)	-4150
311320	Akutan	19995	Confirmed Eruption	5			Radiocarbon (uncorrected)	340
311320	Akutan	19996	Confirmed Eruption				Radiocarbon (uncorrected)	550
311320	Akutan	19997	Confirmed Eruption				Radiocarbon (corrected)	1420
311320	Akutan	19998	Uncertain Eruption					1790
311320	Akutan	19999	Uncertain Eruption					1828
311320	Akutan	20000	Uncertain Eruption					1838
311320	Akutan	20001	Uncertain Eruption					1845
311320	Akutan	20002	Confirmed Eruption	2			Historical Observations	1848/3/5
311320	Akutan	20003	Confirmed Eruption			NW flank (Lava Point)	Historical Observations	1852
311320	Akutan	20004	Uncertain Eruption					1862
311320	Akutan	20005	Confirmed Eruption				Historical Observations	1865
311320	Akutan	20006	Confirmed Eruption				Historical Observations	1867
311320	Akutan	20007	Confirmed Eruption	2			Historical Observations	1883
311320	Akutan	20008	Confirmed Eruption	0			Historical Observations	1887
311320	Akutan	20009	Confirmed Eruption	1			Historical Observations	1892/9/23
311320	Akutan	20010	Confirmed Eruption				Historical Observations	1896
311320	Akutan	20011	Confirmed Eruption				Historical Observations	1907
311320	Akutan	20012	Confirmed Eruption	2			Historical Observations	1911
311320	Akutan	20013	Uncertain Eruption					1912
311320	Akutan	20014	Confirmed Eruption	2			Historical Observations	1927	1928
311320	Akutan	20015	Confirmed Eruption	2			Historical Observations	1929
311320	Akutan	20016	Confirmed Eruption	2			Historical Observations	1931	1931
311320	Akutan	20017	Confirmed Eruption	2			Historical Observations	1946	1947
311320	Akutan	20018	Confirmed Eruption	2			Historical Observations	1948/4/29	1948/8/7
311320	Akutan	20019	Confirmed Eruption	2			Historical Observations	1951/10/16
311320	Akutan	20020	Confirmed Eruption	2			Historical Observations	1953/7/2
311320	Akutan	20021	Confirmed Eruption	2			Historical Observations	1962/11/5
311320	Akutan	20022	Uncertain Eruption	2	?			1972/9/16
311320	Akutan	20023	Confirmed Eruption	2			Historical Observations	1973/3/16	1973/5/16
311320	Akutan	20024	Confirmed Eruption	2		West flank ?	Historical Observations	1974/2/11
311320	Akutan	20025	Confirmed Eruption	2			Historical Observations	1976/10/15	1977/5/9
311320	Akutan	20027	Confirmed Eruption	2			Historical Observations	1978/9/25	1978/10/16
311320	Akutan	20028	Confirmed Eruption	2			Historical Observations	1980/7/3	1980/7/8
311320	Akutan	20029	Confirmed Eruption	2			Historical Observations	1982/10/5	1983/5/16
311320	Akutan	20030	Confirmed Eruption	2			Historical Observations	1986/3/18	1986/6/30
311320	Akutan	20031	Confirmed Eruption	2			Historical Observations	1987/1/31	1987/6/24
311320	Akutan	20032	Confirmed Eruption	2			Historical Observations	1988/3/26	1988/7/20
311320	Akutan	20033	Confirmed Eruption	2			Historical Observations	1989/2/27	1989/3/28
311320	Akutan	20034	Confirmed Eruption	2			Historical Observations	1990/1/26	1990/1/26
311320	Akutan	20035	Confirmed Eruption	2			Historical Observations	1990/9/6	1990/10/1
311320	Akutan	20036	Confirmed Eruption	2			Historical Observations	1991/9/15	1991/10/29
311320	Akutan	20037	Confirmed Eruption	2			Historical Observations	1992/3/8	1992/5/21
311320	Akutan	20038	Confirmed Eruption	1			Historical Observations	1992/12/18
311320	Akutan	21085	Confirmed Eruption	2			Historical Observations	1895/8/1	1895/8/14

Emissions Data from the Global Volcanism Program of the Smithsonian Institution

Sorry. No emissions data found for this volcano.

Data from the Earthchem Library

Title	Author	Release Date	DOI	Link
Field Report for the Collection of Mafic Tephra from the Aleutians Islands between Unimak and the Island of Four Mountains (Alaska, USA)	Plank, Terry	2020-06-23	10.26022/IEDA/111584	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	Cr PPM	Cs PPM	Cu PPM	Dy PPM	Ga PPM	Nb PPM	Ni PPM	Pb PPM	Rb PPM	Sc PPM	Sr 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
PETDB-2535-96PS01	DETAILS	ICPMS	Rock	Igneous Mafic Volcanic	Tholeiite												344	25	2.08	55	5.54	18.4	1.8		9.45	20.4	21	419	1.027	139	34.8	75	98
PETDB-2535-96PS01	DETAILS	TIMS	Rock	Igneous Mafic Volcanic	Tholeiite																													0.70348		18.963	15.596	38.549
PETDB-2535-96PS01	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Tholeiite	57.19	1.04	18.24	7.81	0.2	2.51	7.27	4.6	0.94	0.2	100
PETDB-2535-96PS09	DETAILS	ICPMS	Rock	Igneous Mafic Volcanic	Tholeiite												236	11	1.32	116	4.42	17.4	1.19	2	7.03	13.24	28	410	0.629	290	27.4	80	65.8
PETDB-2535-96PS09	DETAILS	TIMS	Rock	Igneous Mafic Volcanic	Tholeiite																													0.70349	0.51305	18.975	15.599	38.568
PETDB-2535-96PS09	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Tholeiite	52.75	1.19	17.8	11.35	0.22	4	8.48	3.45	0.62	0.14	100
PETDB-2535-96PS12	DETAILS	ICPMS	Rock	Igneous Mafic Volcanic	Tholeiite												326	26	0.86	76	4.51	18.4	1.68	4	7.43	16.71	21	388	0.872	199	28	77	89.2
PETDB-2535-96PS12	DETAILS	TIMS	Rock	Igneous Mafic Volcanic	Tholeiite																													0.70346	0.51305	18.954	15.592	38.54
PETDB-2535-96PS12	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Tholeiite	55.82	0.92	17.7	9.03	0.21	3.8	7.61	3.91	0.83	0.17	100
PETDB-2535-96PS13	DETAILS	ICPMS	Rock	Igneous Mafic Volcanic	Tholeiite												334	31	2	101	5.65	18.5	1.78	2	9.17	19.69	27	365	0.948	237	34.4	86	95.1
PETDB-2535-96PS13	DETAILS	TIMS	Rock	Igneous Mafic Volcanic	Tholeiite																													0.70349	0.51304	18.959	15.596	38.559
PETDB-2535-96PS13	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Tholeiite	55.61	1.13	17.09	9.36	0.21	3.77	7.64	4.11	0.88	0.21	100
PETDB-2535-96PS17	DETAILS	ICPMS	Rock	Igneous Mafic Volcanic	Tholeiite												331	3	1.97	86	5.49	19	1.83	1	7.57	19.35	27	379	0.932	235	34.1	85	94.9
PETDB-2535-96PS17	DETAILS	TIMS	Rock	Igneous Mafic Volcanic	Tholeiite																													0.70348	0.51306	18.93	15.556	38.437
PETDB-2535-96PS17	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Tholeiite	55.7	1.13	17.11	9.28	0.22	3.66	7.67	4.17	0.86	0.2	100
PETDB-2535-96PS18	DETAILS	ICPMS	Rock	Igneous Mafic Volcanic	Tholeiite												314	29	1.63	104	4.87	19	1.64	3	3.2	16.38	29	426	0.799	262	28.5	87	86.3
PETDB-2535-96PS18	DETAILS	TIMS	Rock	Igneous Mafic Volcanic	Tholeiite																													0.70349	0.51316	18.957	15.606	38.58
PETDB-2535-96PS18	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Tholeiite	54.33	1.08	18.03	9.69	0.19	3.59	7.74	4.27	0.76	0.32	100
PETDB-2535-96PS23	DETAILS	ICPMS	Rock	Igneous Mafic Volcanic	Tholeiite												323	7	1.84	108	5.37	19.2	1.8		8.87	19.22	27	370	0.9	260	32.9	86	93.4
PETDB-2535-96PS23	DETAILS	TIMS	Rock	Igneous Mafic Volcanic	Tholeiite																													0.70348	0.513	18.963	15.591	38.528
PETDB-2535-96PS23	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Tholeiite	55.37	1.15	17.06	9.5	0.22	3.69	7.65	4.29	0.86	0.21	100
PETDB-2535-96PS28	DETAILS	ICPMS	Rock	Igneous Mafic Volcanic	Tholeiite												464	5	3.08	49	6.69	19.1	2.59		10.11	30.48	20	345	1.481	96	41.9	87	140.4
PETDB-2535-96PS28	DETAILS	TIMS	Rock	Igneous Mafic Volcanic	Tholeiite																													0.70352	0.51311
PETDB-2535-96PS28	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Tholeiite	59.65	0.99	16.49	8.1	0.21	2.63	5.59	4.83	1.26	0.24	99.99
PETDB-2535-96PS30	DETAILS	ICPMS	Rock	Igneous Mafic Volcanic	Tholeiite												346	9	2.07	53	5.57	18.4	1.8		9.06	20.5	21	416	0.98	136	35.2	88	98.4

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Data from the SESAR Database

IGSN	Object Name	Object Type	Object Class	Material	Field Name	Link
NHB006VUV	NMNH 117233-188 (PET)	Individual Sample		Rock>Igneous	Basalt	Details
TAP000055	AK16TAPCO1	Cylinder	Individual Sample	Rock>Igneous>Volcanic>Mafic	lake core	Details
TAP000056	AK16TAPCO2	Cylinder	Individual Sample	Rock>Igneous>Volcanic>Mafic	lake core	Details
TAP000057	AK16TAPCO3	Cylinder	Individual Sample	Rock>Igneous>Volcanic>Mafic	lake core	Details
TAP000058	AK16TAPCO4	Cylinder	Individual Sample	Rock>Igneous>Volcanic>Mafic	lake core	Details
TAP000059	AK16-DJR-D4	Cylinder	Individual Sample	Rock>Igneous>Volcanic>Mafic	lake bottom mud	Details
TAP00005A	AK16TAPC05	Cylinder	Individual Sample	Rock>Igneous>Volcanic>Mafic	river sediment	Details
TAP00004Z	AK16TAP92	Specimen	Individual Sample	Rock>Igneous>Volcanic>Mafic	cinders	Details
TAP000050	AK16TAP93	Specimen	Individual Sample	Rock>Igneous>Volcanic>Mafic	cinders	Details
TAP000051	AK16TAP94	Specimen	Individual Sample	Rock>Igneous>Volcanic>Mafic	cinders	Details
TAP000052	AK16TAP95	Specimen	Individual Sample	Rock>Igneous>Volcanic>Mafic	cinders, scoria	Details
TAP000053	AK16TAP96	Specimen	Individual Sample	Rock>Igneous>Volcanic>Mafic	fresh lapilli	Details
TAP00005B	AK16TAPC06	Cylinder	Individual Sample	Rock>Igneous>Volcanic>Mafic	river sediment	Details
TAP000054	AK16-DJRD1	Cylinder	Individual Sample	Rock>Igneous>Volcanic>Mafic	lake bottom mud	Details

Data from the MaGa Database

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