IEDA / DECADE Detail

Data from the Global Volcanism Program of the Smithsonian Institution

Details for: Asuncion

An aerial view from the SW shows the upper slopes of Asuncion in the northern Mariana Islands. It forms a circular 3-km-wide island that has had no permanent residents since the late 17th century. An explosive eruption in 1906 produced lava flows that descended about halfway down the W and S flanks. Photo by Dick Moore, 1992 (U.S. Geological Survey).

Volcano Number:	284150
Volcano Name:	Asuncion
Country:	United States
Volcano Type:	Stratovolcano
Last Eruption:	1906 CE
Elevation:	857m
Tectonic Setting:	Subduction zone / Crustal thickness unknown
Latitude:	19.671
Longitude:	145.406

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
284150	Asuncion	18495	Uncertain Eruption					1690
284150	Asuncion	18496	Uncertain Eruption	2				1775
284150	Asuncion	18500	Confirmed Eruption	2		Upper SE and west flanks	Historical Observations	1906
284150	Asuncion	18501	Uncertain Eruption	2	?			1924

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
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%	FeO WT%	FeO Total WT%	MnO WT%	MgO WT%	CaO WT%	Na₂O WT%	K₂O WT%	P₂O₅ WT%	Total WT%	As PPM	Ba PPM	Co PPM	Cr PPM	Cs PPM	Ni PPM	Rb PPM	Sb PPM	Sc PPM	Sr PPM	U PPM	W PPM	Zn PPM	Zr PPM
ASUN-20-01_13	DETAILS	EMP (EPMA)	Rock	Igneous Unknown Volcanic	Not-given	53.1	0.81	16.85	9.085		0.18	4.24	9.21	1.31	0.57	0.12	95.475
ASUN-20-01_13	DETAILS	EMP (EPMA)	Rock	Igneous Unknown Volcanic	Not-given	38.31				21.24		40.08	0.16				99.79
ASUN-20-2_6	DETAILS	EMP (EPMA)	Rock	Igneous Unknown Volcanic	Not-given	47.2	0.86	18.08	11.45		0.23	4.94	11.45	2.22	0.39	0.1	96.92
ASUN-20-2_6	DETAILS	EMP (EPMA)	Rock	Igneous Unknown Volcanic	Not-given	38.03				20.93		40.09	0.19				99.24
D514405	DETAILS	NAA	Rock	Igneous Intermediate Plutonic	Andesite													2.36	208	25.6	5.47	0.308		10.9	0.208	33.8	302	0.22	0.55	91	67.5
D514406	DETAILS	NAA	Rock	Igneous Mafic Plutonic	Gabbro													0.59	26.2	43.5	57.1	0.206	22	3.5	0.072	54.4	261	0.021		70.4	28
D514407	DETAILS	NAA	Rock	Igneous Intermediate Plutonic	Andesite													2.62	184	25.2	4.87	0.469	10	11	0.18	33.3	315	0.201	1.2	89	64.1
D514408	DETAILS	NAA	Rock	Igneous Intermediate Plutonic	Andesite													2.08	191	28.3	17	0.162	8.3	10.4	0.091	33.5	279	0.266		72	79.9

Data from the SESAR Database

IGSN	Object Name	Object Type	Object Class	Material	Field Name	Link
MGD0000HA	Asuncion: ASCN-6	Individual Sample				Details
MGD0000HB	Asuncion: ASCN-7	Individual Sample				Details
MGD0000GZ	Asuncion: ASCN-5	Individual Sample				Details
KAK000023	ASCN-7	Specimen	Individual Sample	Rock>Igneous>Volcanic>Mafic	Tephra	Details
KAK000022	ASUN-20-02	Specimen	Individual Sample	Rock>Igneous>Volcanic>Mafic	Tephra	Details
MGD0000GY	Asuncion: ASCN-4	Individual Sample				Details
MGD0000GX	Asuncion: ASUN-20-02	Individual Sample				Details
KAK000021	ASUN-20-01	Specimen	Individual Sample	Rock>Igneous>Volcanic>Mafic	Tephra	Details
MGD0000GW	Asuncion: ASUN-20-01	Individual Sample				Details
IEMBA000Y	MM-92-6	Rock Powder		Rock>Igneous	Arc lavas	Details

Data from the MaGa Database

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

Data from UNAVCO

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

Data from USIEI

Data from IRIS FDSNWS

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Mag Type	Magnitude	Mag Author	Event Location Name
10603559	2018-01-11T04:09:23	19.736	145.4742	120.87	us	NEIC PDE	us	us2000ci2s	mb	4.8	us	MARIANA ISLANDS
5196119	2016-10-22T22:38:01	19.6728	145.4878	130.19	us	NEIC PDE	us	us20007g5g	mb	4.6	us	MARIANA ISLANDS
4814980	2014-11-16T12:25:58	19.6639	145.3595	147.0	ISC	ISC	ISC	605660473	mb	4.6	NEIC	MARIANA ISLANDS
9206573	2013-09-10T11:22:57	19.5988	145.3681	100.0	ISC	ISC	ISC	603987525	mb	3.8	ISC	MARIANA ISLANDS
4259022	2011-01-08T22:59:50	19.7456	145.3747	0.0	IDC	ISC	ISC	17189727	mb	3.7	IDC	MARIANA ISLANDS
3708555	2009-05-28T01:18:26	19.7207	145.4954	147.0	ISC	ISC	ISC	13679773	mb	4.5	NEIC	MARIANA ISLANDS
3641819	2009-03-21T17:38:48	19.6954	145.4774	160.2	IDC	ISC	ISC	12635204	mb	3.2	IDC	MARIANA ISLANDS
3295887	2009-01-05T04:42:18	19.623	145.4467	659.8	IDC	ISC	ISC	12080330	mb	3.1	IDC	MARIANA ISLANDS
2784579	2008-07-14T11:20:01	19.6338	145.3369	0.0	IDC	ISC	ISC	12698210	mb	3.9	IDC	MARIANA ISLANDS
2765071	2008-02-28T08:53:10	19.7204	145.3556	470.7	ISC	ISC	ISC	11325248	mb	4.0	NEIC	MARIANA ISLANDS
1222455	2001-05-31T17:10:35	19.641	145.321	33.0	ISC	ISC	ISC	3320421	mb	3.4	ISC	MARIANA ISLANDS
2821709	1990-11-04T17:57:33	19.7248	145.3333	175.2	ISC	ISC	ISC	349662	mb	4.6	NEIC	MARIANA ISLANDS
170952	1976-12-19T21:27:42	19.6444	145.4769	76.9	ISC	ISC	ISC	704896	mb	4.5	NEIS	MARIANA ISLANDS
142034	1974-12-28T01:36:18	19.7068	145.3317	295.0	ISC	ISC	ISC	734816	mb	4.5	NEIS	MARIANA ISLANDS