IEDA / DECADE Detail

Data from the Global Volcanism Program of the Smithsonian Institution

Details for: Tokachidake

Tokachi volcano, seen here in eruption in 1988, consists of a group of stratovolcanoes and lava domes arranged on a NE-SW line above a plateau of welded Pleistocene tuffs. Numerous explosion craters and cinder cones are located on the upper flanks of the small stratovolcanoes. Frequent historical eruptions, consisting mostly of mild-to-moderate phreatic explosions like this one in December 1988, have been recorded since the mid-19th century. Two larger eruptions occurred in 1926 and 1962. Photo courtesy of Japan Meteorological Agency, 1988.

Volcano Number:	285050
Volcano Name:	Tokachidake
Country:	Japan
Volcano Type:	Stratovolcano(es)
Last Eruption:	2004 CE
Elevation:	2077m
Tectonic Setting:	Subduction zone / Continental crust (> 25 km)
Pop. within 5km:	12
Pop. within 10km:	227
Pop. within 30km:	60382
Pop. within 100km:	1373264
Latitude:	43.418
Longitude:	142.686

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
285050	Tokachidake	18634	Confirmed Eruption				To-h tephra	Radiocarbon (corrected)	-2650
285050	Tokachidake	18635	Confirmed Eruption					Radiocarbon (corrected)	-1750
285050	Tokachidake	18636	Confirmed Eruption	3		Ground Crater		Radiocarbon (corrected)	-1350
285050	Tokachidake	18637	Confirmed Eruption					Radiocarbon (corrected)	1
285050	Tokachidake	18638	Confirmed Eruption				To-f tephra	Radiocarbon (corrected)	350
285050	Tokachidake	18639	Confirmed Eruption				To-d, To-e tephras	Tephrochronology	600
285050	Tokachidake	18640	Confirmed Eruption				To-c tephra	Radiocarbon (corrected)	950
285050	Tokachidake	18641	Confirmed Eruption					Tephrochronology	1050
285050	Tokachidake	18642	Confirmed Eruption	3			To-b tephra	Radiocarbon (corrected)	1250
285050	Tokachidake	18643	Confirmed Eruption	2	?	Maru-yama		Radiocarbon (corrected)	1570
285050	Tokachidake	18644	Confirmed Eruption	2				Historical Observations	1857
285050	Tokachidake	18645	Confirmed Eruption	2		Lower part of Maru-yama?		Historical Observations	1887
285050	Tokachidake	18646	Confirmed Eruption	2		Maru-yama (Yunuma)		Historical Observations	1889
285050	Tokachidake	18647	Confirmed Eruption	3		Shin-funkako		Historical Observations	1925/11/20	1927
285050	Tokachidake	18648	Confirmed Eruption	1		Shin-funkako		Historical Observations	1928	1928/5/23
285050	Tokachidake	18649	Confirmed Eruption	1		Shin-funkako		Historical Observations	1928/12/4	1928/12/25
285050	Tokachidake	18650	Confirmed Eruption	1				Historical Observations	1931/5/16	1931/5/16
285050	Tokachidake	18651	Confirmed Eruption			NE of Shin-funkako (Showa Crater)		Historical Observations	1952/8/17
285050	Tokachidake	18652	Confirmed Eruption	1		NE of Shin-funkako (Showa Crater)		Historical Observations	1954/9/16	1954/9/16
285050	Tokachidake	18653	Confirmed Eruption	1		NE of Shin-funkako (Showa Crater)		Historical Observations	1956/6/16	1956/6/16
285050	Tokachidake	18654	Uncertain Eruption	1		NE of Shin-funkako (Showa Crater)			1957/8/20	1957/8/20
285050	Tokachidake	18655	Confirmed Eruption	1		NE of Shin-funkako (Showa Crater)		Historical Observations	1958/10/4	1958/10/4
285050	Tokachidake	18656	Confirmed Eruption	1		NE of Shin-funkako (Showa Crater)		Historical Observations	1959/8/15	1959/11/25
285050	Tokachidake	18657	Confirmed Eruption	1		NW of Kami-Horokamettoku-yama		Historical Observations	1961/8/14	1961/8/14
285050	Tokachidake	18658	Confirmed Eruption	3		South of Shin-funkako		Historical Observations	1962/6/29	1962/9/16
285050	Tokachidake	18659	Confirmed Eruption	1		East wall of 1962 crater		Historical Observations	1985/6/19	1985/6/22
285050	Tokachidake	18660	Confirmed Eruption	2		1962 Crater		Historical Observations	1988/12/10	1989/5/16
285050	Tokachidake	18661	Confirmed Eruption	1	?	1962-II Crater		Historical Observations	2004/2/25	2004/4/19

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
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%	Fe₂O₃ WT%	FeO WT%	FeO Total WT%	MnO WT%	MgO WT%	CaO WT%	Na₂O WT%	K₂O WT%	P₂O₅ WT%	Total WT%	Rb PPM	Sr PPM	U PPM	⁸⁷Sr / ⁸⁶Sr RATIO
KI-68	DETAILS	NOT GIVEN	Rock	Igneous Unknown Volcanic	Not-given	51.23	1.17	18.33	10.6			0.19	4.76	9.41	2.78	1.09	0.17	99.73
2	DETAILS	NOT GIVEN	Rock	Igneous Intermediate Volcanic	Andesite	53.41	1.23	17.98	2.77	6.52		0.2	4.31	9.07	2.52	1.31	0.19	99.51
2	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	52.78	0.04	29.41			0.64	0	0.1	13.03	4.03	0.37		100
2	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	46.69	0	33.8			0.6	0.04	0.06	17.64	1.71	0.1		100
2	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	46.03	0.02	34.34			0.58	0	0.09	18.28	1.27	0.05		100
2	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	50.68	0.05	30.52			0.72	0.04	0.1	14.24	3.38	0.16		99.89
2	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	50.83	0.55	2.1			10.48	0.42	14.83	20.11	0.23	0		99.55
2	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	50.77	0.57	2.05			8.81	0.38	15.72	20.04	0.16	0		98.5
2	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	51.12	0.57	1.94			9.68	0.4	15.02	20.54	0.27	0		99.54
2	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	49.87	0.93	3.22			11.77	0.46	14.13	18.72	0.31	0		99.41
2	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	52.27	0.19	0.63			20.36	0.87	23.43	1.26	0	0		99.01
2	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	52.61	0.32	1.9			16.63	0.6	25.01	2.01	0.03	0		99.11
2	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	52.55	0.25	0.94			16.33	0.55	25.85	1.52	0.01	0		98
2	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	52.61	0.34	1.43			16.47	0.56	25.25	1.63	0.01	0		98.3
2	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	38.22	0.02	0.02			24.12	0	37.02	0.22	0.08			99.7
2	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	36.56	0.05	0			28.74	0.6	34.8	0.18	0			100
2	DETAILS	EMP (EPMA)	Rock	Igneous Intermediate Volcanic	Andesite	51.29	0.4	1.85			17.02	0.68	25.03	2.02	0.01			98.3
31	DETAILS	NOT GIVEN	Rock	Igneous Intermediate Volcanic	Andesite	53.93	1.25	18.39	3.11	6.21		0.19	4.1	8.83	2.4	1.43	0.15	99.99
K-22	DETAILS	FTSC	Rock	Igneous Intermediate Volcanic	Andesite																1.78
K-22	DETAILS	AAS	Rock	Igneous Intermediate Volcanic	Andesite														35.7	321
K-22	DETAILS	TIMS	Rock	Igneous Intermediate Volcanic	Andesite																	0.703947
C1-151-1	DETAILS	NOT GIVEN	Rock	Igneous Unknown Volcanic	Not-given	52.23	1.17	17.95	10.49			0.19	4.68	8.92	2.76	1.17	0.19	99.75
S1-154-1	DETAILS	NOT GIVEN	Rock	Igneous Unknown Volcanic	Not-given	54.34	1.05	17.83	9.54			0.18	4.28	8.29	2.81	1.49	0.17	99.98
62-2-91-2	DETAILS	NOT GIVEN	Rock	Igneous Unknown Volcanic	Not-given	52.33	1.09	17.9	10.08			0.19	4.47	8.86	2.79	1.26	0.19	99.16
36-8-A	DETAILS	NOT GIVEN	Rock	Igneous Unknown Volcanic	Not-given	53.92	1.04	17.54	9.5			0.17	4.12	8.31	2.7	1.54	0.17	99.01

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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

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