IEDA / DECADE Detail

Data from the Global Volcanism Program of the Smithsonian Institution

Details for: Anatahan

The two coalescing volcanoes forming the elongate, 9-km-long island of Anatahan in the central Mariana Islands are apparent in this aerial view from the south. The low point in the center of the island results in part from overlapping 2.3 x 5 km wide calderas, the largest in the Mariana Islands. The larger western caldera is 2.3 x 3 km wide and extends eastward from the 788-m-high summit of the western volcano (left). The volcano's first historical eruption in 2003 took place from a small crater within the 2-km-wide eastern caldera. Photo courtesy of U. S. Geological Survey, 1994.

Volcano Number:	284200
Volcano Name:	Anatahan
Country:	United States
Volcano Type:	Stratovolcano
Last Eruption:	2008 CE
Elevation:	790m
Tectonic Setting:	Subduction zone / Crustal thickness unknown
Pop. within 5km:	0
Pop. within 10km:	0
Pop. within 30km:	0
Pop. within 100km:	0
Latitude:	16.35
Longitude:	145.67

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
284200	Anatahan	18535	Confirmed Eruption	3		East Crater	Historical Observations	2003/5/10	2003/7/12
284200	Anatahan	18536	Confirmed Eruption	3	?	East Crater	Historical Observations	2004/4/12	2005/9/3
284200	Anatahan	18537	Confirmed Eruption	2		East Crater	Historical Observations	2006/3/20	2006/6/26
284200	Anatahan	18538	Confirmed Eruption	2			Historical Observations	2007/11/27	2008/8/9

Emissions Data from the Global Volcanism Program of the Smithsonian Institution

Emission ID	SO2 Kilotons	Start Date	End Date
173	494	2003/05/11	2003/06/13
174	2324.2	2005/04/05	2005/09/03

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
Bulk rock data for Marianas arc tephra	Plank, Terry	2020-11-05	10.26022/IEDA/111736	Details
Melt Inclusion data from the Marianas and Izu volcanic arcs, and Mariana Trough back-arc basin	Hauri, Erik	2021-06-29	10.26022/IEDA/112036	Details

Data from the Earthchem Portal

Sample ID	LINK	Method	Material	Rock Class	Rock Name	SiO₂ WT%	TiO₂ WT%	Al₂O₃ WT%	Fe₂O₃ Total WT%	MnO WT%	MgO WT%	CaO WT%	Na₂O WT%	K₂O WT%	P₂O₅ WT%	Total WT%	Ba PPM	Be PPM	Co 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
AN-3	DETAILS	XRF	Rock	Igneous Mafic Volcanic	Basalt	50.01	0.75	20.18	10.29	0.18	3.86	11.36	2.35	0.42	0.11	99.51	153		29	12		149			0.2	12		6		441		319	17	76	40
AN-3	DETAILS	ICPAES	Rock	Igneous Mafic Volcanic	Basalt	50.01	0.75	20.18	10.3	0.18	3.86	11.4	2.35	0.42	0.11	99.56
AN-3	DETAILS	ICPMS	Rock	Igneous Mafic Volcanic	Basalt												136	0.361	27.8	6	0.111	136	2.76	16	0.763	13.8	1.6	6.36	28.1	436	0.181	290	16.5	68.1	33.7
AN-3	DETAILS	NOT GIVEN	Rock	Igneous Mafic Volcanic	Basalt																																	18.792	15.557	38.398
AN-3	DETAILS	ICPMS	Rock	Igneous Unknown Volcanic	Not-given												139.794		29.5222	7.53423	0.117353	138.537	2.82325	17.6014	0.786053	13.0548	1.86341	5.72961	29.9809	448.191	0.195386	317.46	15.7033	74.8772	34.3567
AN-3	DETAILS	XRF	Rock	Igneous Unknown Volcanic	Not-given	50.2563	0.753693	20.2794	10.3407	0.180886	3.87901	11.4159	2.36157	0.422068	0.110542	100
AN-3	DETAILS	ICPMS	Rock	Igneous Unknown Volcanic	Not-given												142.46		29.6995	7.48448	0.119347	137.376	2.82195	17.4906	0.769369	13.0376	1.85227	5.668	30.231	440.852	0.197763	319.364	15.3141	74.1067	33.9105
AN5	DETAILS	TIMS	Rock	Igneous Intermediate Volcanic	Andesite																															0.70355	0.512998	18.773	15.577	38.45
AN5	DETAILS	XRF	Rock	Igneous Intermediate Volcanic	Andesite	53.71	0.79	18.45	10.48	0.2	3.26	9.23	3.02	0.71	0.16	100	233		45	8		113			0.6	7		13		410		261	24	87	61
AN5	DETAILS	TIMS	Rock	Igneous Intermediate Volcanic	Andesite																															0.70355		18.773	15.577	38.45
AN5	DETAILS	ICPAES	Rock	Igneous Intermediate Volcanic	Andesite	53.71	0.79	18.45	10.5	0.2	3.26	9.23	3.02	0.71	0.16	100
AN5	DETAILS	ICPMS	Rock	Igneous Intermediate Volcanic	Andesite												247	0.561	43.3	2	0.21	115	4.04	17	1.28	6.39	2.8	13.2	31.1	418	0.349	260	24.5	86.6	58.6
AN5	DETAILS	NOT GIVEN	Rock	Igneous Intermediate Volcanic	Andesite																																	18.795	15.565	38.418
AN-7	DETAILS	ICPAES	Rock	Igneous Intermediate Volcanic	Andesite	53.49	0.79	18.63	10.37	0.2	3.29	9.33	3.06	0.68	0.16	100
AN-7	DETAILS	ICPMS	Rock	Igneous Intermediate Volcanic	Andesite												241	0.511	25.7	2	0.182	105	3.97	16	1.2	6.08	2.34	11.7	30.3	414	0.347	255	24.7	77.6	61.7
AN-7	DETAILS	NOT GIVEN	Rock	Igneous Intermediate Volcanic	Andesite																																	18.8	15.568	38.427
AN-6	DETAILS	TIMS	Rock	Igneous Intermediate Volcanic	Andesite																															0.70352	0.513007	18.792	15.565	38.409
AN-6	DETAILS	XRF	Rock	Igneous Intermediate Volcanic	Andesite	58.15	0.93	15.63	10.62	0.21	2.7	6.53	3.93	1.09	0.23	100	319		23	6		40			2.1	2		17		350		183	37	108	90
AN-6	DETAILS	TIMS	Rock	Igneous Intermediate Volcanic	Andesite																															0.70352		18.792	15.565	38.409
AN-6	DETAILS	ICPAES	Rock	Igneous Intermediate Volcanic	Andesite	58.15	0.93	15.63	10.6	0.21	2.7	6.53	3.93	1.09	0.23	100
AN-6	DETAILS	ICPMS	Rock	Igneous Intermediate Volcanic	Andesite												443	1.04	30.9	0	0.734	31.3	6.96	14	3.13	3.52	5.22	32	23.2	327	0.818	55.9	43	97.1	131
AN-6	DETAILS	NOT GIVEN	Rock	Igneous Intermediate Volcanic	Andesite																																	18.805	15.566	38.427
04-ANAT-04	DETAILS	ICPAES	Rock	Igneous Intermediate Volcanic	Andesite	54.03	0.778	19.41	8.69	0.179	2.56	9.08	3.44	1	0.187	99.354
04-ANAT-04	DETAILS	ICPMS	Rock	Igneous Intermediate Volcanic	Andesite												280	0.661	21.2	1	0.528	63	4.38	19	2.59	2.74	3.5	20.3	25.7	428	0.506	188	27.3	83	79
AN-2	DETAILS	TIMS	Rock	Igneous Mafic Volcanic	Basalt																															0.7034

12345Next

Data from the SESAR Database

IGSN	Object Name	Object Type	Object Class	Material	Field Name	Link
MGD0000IH	Anatahan: 04 ANAT-3	Individual Sample				Details
MGD0000JQ	West Beach 12	Individual Sample				Details
MGD0000IE	Anatahan: ANAT-26-02	Individual Sample				Details
MGD0000IG	Anatahan: 04 ANAT-2	Individual Sample				Details
MGD0000IF	Anatahan: 04 ANAT-1	Individual Sample				Details
MGD0000JR	West Beach 11	Individual Sample				Details
MGD0000JO	West Beach 06	Individual Sample				Details
MGD0000JN	West Beach 07	Individual Sample				Details
MGD0000JK	East Meadow 3	Individual Sample				Details
MGD0000JJ	East Meadow 2	Individual Sample				Details
MGD0000JI	East Meadow 1	Individual Sample				Details
KAK000034	04 ANAT-1	Specimen	Individual Sample	Rock>Igneous>Volcanic>Mafic	Tephra	Details
MGD0000JM	West Beach 08	Individual Sample				Details
MGD0000II	Anatahan: 04 ANAT-4	Individual Sample				Details
MGD0000JL	East Meadow 4	Individual Sample				Details
MGD0000ID	Anatahan: ANAT-26-01	Individual Sample				Details
MGD0000JP	West Beach 05	Individual Sample				Details
MGD0000JS	West Beach 09	Individual Sample				Details

Data from the MaGa Database

Error. The MaGa Web Services (http://www.magadb.net/web_services/) are down.