IEDA / DECADE Detail

Data from the Global Volcanism Program of the Smithsonian Institution

Details for: Iwakisan

Iwakisan rises above farmlands below its SE flank. The peak to the left is Chokaisan and the 2-km-wide summit crater is filled by a lava dome that forms the summit. Eruptions have occurred since 1597 CE and have consisted primarily of small-to-moderate phreatic explosions. Copyrighted photo by Yoshihiro Ishizuka (Japanese Quaternary Volcanoes database, RIODB, http://riodb02.ibase.aist.go.jp/strata/VOL_JP/EN/index.htm and Geol Surv Japan, AIST, http://www.gsj.jp/).

Volcano Number:	283270
Volcano Name:	Iwakisan
Country:	Japan
Volcano Type:	Stratovolcano
Last Eruption:	1863 CE
Elevation:	1625m
Tectonic Setting:	Subduction zone / Continental crust (> 25 km)
Pop. within 5km:	918
Pop. within 10km:	13229
Pop. within 30km:	465065
Pop. within 100km:	1617801
Latitude:	40.656
Longitude:	140.303

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
283270	Iwakisan	18100	Confirmed Eruption			Torinoumi lava dome	Potassium-Argon	-8050
283270	Iwakisan	18101	Confirmed Eruption			West summit lava dome	Tephrochronology	-4050
283270	Iwakisan	18102	Confirmed Eruption			Summit and central lava dome	Tephrochronology	-1050
283270	Iwakisan	18103	Confirmed Eruption			Torinoumi lava dome	Tephrochronology	-550
283270	Iwakisan	18104	Uncertain Eruption	2				1597
283270	Iwakisan	18105	Uncertain Eruption	2				1597/6/13
283270	Iwakisan	18106	Confirmed Eruption	2		Torinoumi	Historical Observations	1600/2/22
283270	Iwakisan	18107	Confirmed Eruption	2		Torinoumi	Historical Observations	1600/7/23	1600/7/25
283270	Iwakisan	18108	Confirmed Eruption	3	?	Torinoumi	Historical Observations	1604/2/7
283270	Iwakisan	18109	Uncertain Eruption	2	?			1605/4/10
283270	Iwakisan	18110	Confirmed Eruption	2			Historical Observations	1618/1/31
283270	Iwakisan	18111	Uncertain Eruption	2	?			1672/7/12	1672/7/28
283270	Iwakisan	18112	Uncertain Eruption	2	?			1694/6/19
283270	Iwakisan	18113	Uncertain Eruption	2	?			1709/4/23
283270	Iwakisan	18114	Uncertain Eruption	2				1769
283270	Iwakisan	18115	Uncertain Eruption	2		South flank		1782/4/12
283270	Iwakisan	18116	Confirmed Eruption	2			Historical Observations	1782/12/1	1783/3/12
283270	Iwakisan	18117	Uncertain Eruption	2	?			1783/12/3
283270	Iwakisan	18118	Confirmed Eruption	2			Historical Observations	1790/10/9
283270	Iwakisan	18119	Uncertain Eruption	2				1793/4/2
283270	Iwakisan	18120	Uncertain Eruption	2				1794/4/3
283270	Iwakisan	18121	Uncertain Eruption	2				1800/5/11
283270	Iwakisan	18122	Uncertain Eruption	2				1807/3/31
283270	Iwakisan	18123	Uncertain Eruption	2				1833/4/11
283270	Iwakisan	18124	Confirmed Eruption	2		Summit and south flank?	Historical Observations	1844/4/7
283270	Iwakisan	18125	Confirmed Eruption	2			Historical Observations	1845/4/4
283270	Iwakisan	18126	Uncertain Eruption	2				1848/1/18
283270	Iwakisan	18127	Uncertain Eruption	2				1856/5/20
283270	Iwakisan	18128	Confirmed Eruption	1			Historical Observations	1863/3/23

Emissions Data from the Global Volcanism Program of the Smithsonian Institution

Sorry. No emissions data found for this volcano.

Data from the Earthchem Library

Sorry. No data exist for this volcano in the EarthChem Library.

Data from the Earthchem Portal

Sample ID	LINK	Method	Material	Rock Class	Rock Name	SiO₂ WT%	TiO₂ WT%	Al₂O₃ WT%	Fe₂O₃ WT%	FeO WT%	MnO WT%	MgO WT%	CaO WT%	Na₂O WT%	K₂O WT%	P₂O₅ WT%	Total WT%	Rb PPM	Sr PPM	⁸⁷Sr / ⁸⁶Sr RATIO
73	DETAILS	WET	Rock	Igneous Intermediate Volcanic	Andesite	63.74	0.34	15.63	3.58	2.97	0.09	2.55	5.4	3.79	1.59	0.2	99.88
IW.797122	DETAILS	TIMS	Rock	Igneous Intermediate Volcanic	Andesite															0.70406
IW.797122	DETAILS	XRF	Rock	Igneous Intermediate Volcanic	Andesite													27	299
1	DETAILS	NOT GIVEN	Rock	Igneous Intermediate Volcanic	Andesite	55.34	1.7	17.85	3.69	4.42	0.06	3.19	7.45	3.11	1.05	0.27	98.13

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.

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	Magnitude	Mag Author	Event Location Name
10854351	2015-08-03T15:09:36	40.73	140.36	9.0	JMA	ISC	ISC	608754734	0.3	JMA	EASTERN HONSHU, JAPAN
10817452	2015-07-09T22:11:23	40.65	140.31	17.0	JMA	ISC	ISC	608746856	0.5	JMA	EASTERN HONSHU, JAPAN
10817450	2015-07-09T22:10:37	40.64	140.33	15.0	JMA	ISC	ISC	608746853	0.6	JMA	EASTERN HONSHU, JAPAN
10665583	2015-03-21T17:52:13	40.71	140.37	12.0	JMA	ISC	ISC	608412929	0.8	JMA	EASTERN HONSHU, JAPAN
10634247	2015-02-25T19:28:22	40.58	140.34	8.0	JMA	ISC	ISC	608405291	1.0	JMA	EASTERN HONSHU, JAPAN
10633718	2015-02-25T08:30:11	40.67	140.36	31.0	JMA	ISC	ISC	608405086	0.9	JMA	EASTERN HONSHU, JAPAN
10633347	2015-02-24T22:20:49	40.57	140.34	8.0	JMA	ISC	ISC	608404990	0.6	JMA	EASTERN HONSHU, JAPAN

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Magnitude	Mag Author	Event Location Name
10466768	2014-10-14T14:42:42	40.64	140.29	5.0	JMA	ISC	ISC	607593017	0.7	JMA	EASTERN HONSHU, JAPAN
10426756	2014-09-13T03:26:07	40.65	140.34	18.0	JMA	ISC	ISC	607581481	0.3	JMA	EASTERN HONSHU, JAPAN
10359869	2014-08-09T08:08:42	40.71	140.37	11.0	JMA	ISC	ISC	607107762	0.9	JMA	EASTERN HONSHU, JAPAN
10354533	2014-08-04T11:10:55	40.71	140.37	11.0	JMA	ISC	ISC	607105647	0.5	JMA	EASTERN HONSHU, JAPAN
10312790	2014-06-26T03:38:56	40.67	140.36	32.0	JMA	ISC	ISC	607086625	0.7	JMA	EASTERN HONSHU, JAPAN
10306532	2014-06-20T09:59:42	40.65	140.32	17.0	JMA	ISC	ISC	607084326	0.4	JMA	EASTERN HONSHU, JAPAN
10235037	2014-05-04T15:03:42	40.66	140.32	167.0	JMA	ISC	ISC	607135589	1.8	JMA	EASTERN HONSHU, JAPAN
10231617	2014-05-01T23:52:27	40.66	140.33	18.0	JMA	ISC	ISC	607133775	1.3	JMA	EASTERN HONSHU, JAPAN
10231342	2014-05-01T18:55:29	40.63	140.29	19.0	JMA	ISC	ISC	607133699	0.4	JMA	EASTERN HONSHU, JAPAN
10231313	2014-05-01T18:35:18	40.65	140.33	16.0	JMA	ISC	ISC	607133687	0.3	JMA	EASTERN HONSHU, JAPAN
10186098	2014-04-18T15:49:04	40.71	140.26	165.0	JMA	ISC	ISC	607128659	1.4	JMA	EASTERN HONSHU, JAPAN
10183891	2014-04-16T18:47:24	40.74	140.37	10.0	JMA	ISC	ISC	610240287	1.3	JMA	EASTERN HONSHU, JAPAN
10179008	2014-04-12T16:48:41	40.65	140.34	21.0	JMA	ISC	ISC	607126500	1.0	JMA	EASTERN HONSHU, JAPAN
10173612	2014-04-08T12:01:14	40.73	140.36	10.0	JMA	ISC	ISC	607124720	0.6	JMA	EASTERN HONSHU, JAPAN
10029328	2014-02-20T13:31:09	40.65	140.32	16.0	JMA	ISC	ISC	606568463	0.5	JMA	EASTERN HONSHU, JAPAN
10029326	2014-02-20T13:29:52	40.65	140.32	16.0	JMA	ISC	ISC	606568462	1.2	JMA	EASTERN HONSHU, JAPAN
10027454	2014-02-18T23:03:19	40.74	140.37	10.0	JMA	ISC	ISC	606567883	2.1	JMA	EASTERN HONSHU, JAPAN

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Magnitude	Mag Author	Event Location Name
9938462	2013-12-24T21:20:10	40.69	140.2	176.0	JMA	ISC	ISC	606001765	2.5	JMA	EASTERN HONSHU, JAPAN
9424368	2013-11-29T16:48:00	40.56	140.33	7.0	JMA	ISC	ISC	605992110	0.6	JMA	EASTERN HONSHU, JAPAN
9188892	2013-08-25T22:15:21	40.64	140.2	30.0	JMA	ISC	ISC	605956029	1.1	JMA	EASTERN HONSHU, JAPAN
9106908	2013-06-18T08:26:41	40.57	140.3	7.0	JMA	ISC	ISC	606152873	0.7	JMA	EASTERN HONSHU, JAPAN
9320502	2013-04-19T22:59:12	40.74	140.36	10.0	JMA	ISC	ISC	606124994	1.3	JMA	EASTERN HONSHU, JAPAN
9036195	2013-03-07T16:54:33	40.62	140.31	23.0	JMA	ISC	ISC	606106800	0.6	JMA	EASTERN HONSHU, JAPAN
9036174	2013-03-07T16:43:25	40.64	140.33	23.0	JMA	ISC	ISC	606106795	0.8	JMA	EASTERN HONSHU, JAPAN
9036168	2013-03-07T16:39:40	40.65	140.31	24.0	JMA	ISC	ISC	606106794	0.9	JMA	EASTERN HONSHU, JAPAN
9036167	2013-03-07T16:39:34	40.64	140.33	21.0	JMA	ISC	ISC	606106791	0.7	JMA	EASTERN HONSHU, JAPAN
9035274	2013-03-07T08:43:59	40.65	140.34	21.0	JMA	ISC	ISC	606106597	0.9	JMA	EASTERN HONSHU, JAPAN

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Magnitude	Mag Author	Event Location Name
8955499	2012-12-29T06:40:02	40.58	140.36	7.0	JMA	ISC	ISC	606078943	1.6	JMA	EASTERN HONSHU, JAPAN
8907907	2012-11-13T15:13:19	40.62	140.38	7.0	JMA	ISC	ISC	606059734	0.8	JMA	EASTERN HONSHU, JAPAN
8818955	2012-08-27T14:05:49	40.66	140.33	36.0	JMA	ISC	ISC	606019990	0.4	JMA	EASTERN HONSHU, JAPAN
8805263	2012-08-15T16:43:55	40.57	140.34	9.0	JMA	ISC	ISC	606012679	-0.5	JMA	EASTERN HONSHU, JAPAN
8792597	2012-08-03T20:01:27	40.62	140.38	8.0	JMA	ISC	ISC	606006567	0.5	JMA	EASTERN HONSHU, JAPAN
8760848	2012-07-06T23:38:51	40.63	140.39	9.0	JMA	ISC	ISC	603635746	0.3	JMA	EASTERN HONSHU, JAPAN
8680664	2012-05-04T00:39:33	40.72	140.39	11.0	JMA	ISC	ISC	602296611	0.8	JMA	EASTERN HONSHU, JAPAN

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Magnitude	Mag Author	Event Location Name
4759365	2011-12-27T09:35:34	40.68	140.37	10.0	JMA	ISC	ISC	602169274	1.1	JMA	EASTERN HONSHU, JAPAN
4758698	2011-12-26T18:17:28	40.67	140.36	10.0	JMA	ISC	ISC	602168958	1.1	JMA	EASTERN HONSHU, JAPAN
4758016	2011-12-26T04:04:08	40.67	140.37	9.0	JMA	ISC	ISC	602168579	1.8	JMA	EASTERN HONSHU, JAPAN
4752845	2011-12-21T22:53:58	40.68	140.37	9.0	JMA	ISC	ISC	602165890	1.1	JMA	EASTERN HONSHU, JAPAN
4670581	2011-10-23T18:03:36	40.65	140.33	14.0	JMA	ISC	ISC	601421964	0.5	JMA	EASTERN HONSHU, JAPAN
4567930	2011-08-08T19:05:55	40.67	140.36	32.0	JMA	ISC	ISC	601363884	0.4	JMA	EASTERN HONSHU, JAPAN
4481078	2011-06-25T19:04:42	40.59	140.35	168.0	JMA	ISC	ISC	600649022	2.1	JMA	EASTERN HONSHU, JAPAN
4478736	2011-06-23T15:12:13	40.63	140.3	17.0	JMA	ISC	ISC	600647888	0.8	JMA	EASTERN HONSHU, JAPAN
4358796	2011-03-27T08:00:22	40.65	140.33	4.0	JMA	ISC	ISC	602697798	0.4	JMA	EASTERN HONSHU, JAPAN
4329718	2011-03-15T01:04:02	40.57	140.37	8.0	JMA	ISC	ISC	602662365	1.5	JMA	EASTERN HONSHU, JAPAN
4326914	2011-03-13T15:41:59	40.57	140.34	7.0	JMA	ISC	ISC	602657312	0.8	JMA	EASTERN HONSHU, JAPAN
4320046	2011-03-10T03:21:41	40.63	140.43	12.0	JMA	ISC	ISC	602651897	0.8	JMA	EASTERN HONSHU, JAPAN
4252829	2011-01-02T04:37:55	40.65	140.32	16.0	JMA	ISC	ISC	600514730	1.1	JMA	EASTERN HONSHU, JAPAN

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Magnitude	Mag Author	Event Location Name
4139331	2010-09-16T03:32:57	40.63	140.19	30.0	JMA	ISC	ISC	16805043	0.6	JMA	EASTERN HONSHU, JAPAN
4097415	2010-08-03T02:55:44	40.57	140.32	7.0	JMA	ISC	ISC	16787804	0.6	JMA	EASTERN HONSHU, JAPAN
4045381	2010-06-07T09:55:28	40.63	140.39	8.0	JMA	ISC	ISC	16275398	0.5	JMA	EASTERN HONSHU, JAPAN
4031641	2010-05-23T15:47:17	40.63	140.39	7.0	JMA	ISC	ISC	16266987	0.7	JMA	EASTERN HONSHU, JAPAN
4012729	2010-05-03T16:58:08	40.66	140.34	31.0	JMA	ISC	ISC	16259415	0.8	JMA	EASTERN HONSHU, JAPAN
4005622	2010-04-25T11:47:43	40.58	140.38	8.0	JMA	ISC	ISC	16256730	1.2	JMA	EASTERN HONSHU, JAPAN
3971872	2010-03-19T09:23:58	40.63	140.22	171.0	JMA	ISC	ISC	15777025	1.6	JMA	EASTERN HONSHU, JAPAN
3962019	2010-03-08T17:28:56	40.74	140.37	9.0	JMA	ISC	ISC	15773332	1.1	JMA	EASTERN HONSHU, JAPAN
3914391	2010-01-11T13:41:12	40.6	140.37	7.0	JMA	ISC	ISC	15752645	0.4	JMA	EASTERN HONSHU, JAPAN

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Magnitude	Mag Author	Event Location Name
3818828	2009-09-21T15:24:32	40.67	140.37	10.0	JMA	ISC	ISC	15482136	0.8	JMA	EASTERN HONSHU, JAPAN
3793095	2009-08-24T04:06:44	40.63	140.19	30.0	JMA	ISC	ISC	15469062	0.9	JMA	EASTERN HONSHU, JAPAN
3746953	2009-07-06T11:31:05	40.61	140.38	8.0	JMA	ISC	ISC	15446367	0.4	JMA	EASTERN HONSHU, JAPAN
3736415	2009-06-27T15:49:45	40.62	140.38	9.0	JMA	ISC	ISC	15442339	1.0	JMA	EASTERN HONSHU, JAPAN
3721286	2009-06-10T20:29:00	40.61	140.38	9.0	JMA	ISC	ISC	15435435	1.1	JMA	EASTERN HONSHU, JAPAN
3712377	2009-06-01T06:44:50	40.61	140.39	8.0	JMA	ISC	ISC	15431405	0.4	JMA	EASTERN HONSHU, JAPAN
3699953	2009-05-19T10:52:27	40.61	140.38	8.0	JMA	ISC	ISC	15426685	1.6	JMA	EASTERN HONSHU, JAPAN
3699952	2009-05-19T10:51:35	40.61	140.38	9.0	JMA	ISC	ISC	15426682	1.5	JMA	EASTERN HONSHU, JAPAN
3699796	2009-05-19T06:41:30	40.61	140.38	9.0	JMA	ISC	ISC	15426621	2.4	JMA	EASTERN HONSHU, JAPAN
3699737	2009-05-19T04:37:24	40.62	140.39	8.0	JMA	ISC	ISC	15426599	1.3	JMA	EASTERN HONSHU, JAPAN
3699587	2009-05-18T23:13:08	40.62	140.39	8.0	JMA	ISC	ISC	15426554	1.5	JMA	EASTERN HONSHU, JAPAN
3695375	2009-05-14T05:23:30	40.63	140.38	7.0	JMA	ISC	ISC	15425063	1.0	JMA	EASTERN HONSHU, JAPAN
3652804	2009-04-03T10:02:55	40.74	140.37	9.0	JMA	ISC	ISC	15558970	1.4	JMA	EASTERN HONSHU, JAPAN

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Magnitude	Mag Author	Event Location Name
3264369	2008-12-16T02:18:18	40.74	140.37	140.0	JMA	ISC	ISC	15516843	2.5	JMA	EASTERN HONSHU, JAPAN
3233598	2008-11-11T14:43:21	40.63	140.37	9.0	JMA	ISC	ISC	14120956	0.5	JMA	EASTERN HONSHU, JAPAN
3233337	2008-11-11T11:13:18	40.63	140.37	9.0	JMA	ISC	ISC	14120904	0.7	JMA	EASTERN HONSHU, JAPAN
3233335	2008-11-11T11:13:10	40.63	140.37	8.0	JMA	ISC	ISC	14120903	0.4	JMA	EASTERN HONSHU, JAPAN
3230213	2008-11-09T03:49:12	40.67	140.36	9.0	JMA	ISC	ISC	14120011	2.4	JMA	EASTERN HONSHU, JAPAN
3229407	2008-11-08T13:29:26	40.68	140.36	9.0	JMA	ISC	ISC	14119806	1.1	JMA	EASTERN HONSHU, JAPAN
3196034	2008-09-21T08:22:22	40.62	140.38	8.0	JMA	ISC	ISC	14102941	0.8	JMA	EASTERN HONSHU, JAPAN
3181663	2008-09-01T08:05:35	40.6	140.38	163.0	JMA	ISC	ISC	14095469	1.4	JMA	EASTERN HONSHU, JAPAN
4508621	2008-08-28T15:39:22	40.67	140.34	30.0	JMA	ISC	ISC	13542968	0.9	JMA	EASTERN HONSHU, JAPAN
4508423	2008-08-28T09:55:09	40.71	140.36	11.0	JMA	ISC	ISC	13542868	0.6	JMA	EASTERN HONSHU, JAPAN
4507726	2008-08-27T12:46:09	40.71	140.36	11.0	JMA	ISC	ISC	13541717	0.6	JMA	EASTERN HONSHU, JAPAN
2775173	2008-05-26T05:14:35	40.62	140.38	7.0	JMA	ISC	ISC	11637439	1.0	JMA	EASTERN HONSHU, JAPAN
2755818	2008-05-22T11:39:49	40.57	140.31	6.0	JMA	ISC	ISC	11636256	0.8	JMA	EASTERN HONSHU, JAPAN
6000811	2008-04-13T07:26:02	40.7	140.37	10.0	JMA	ISC	ISC	11623089	1.2	JMA	EASTERN HONSHU, JAPAN
2700396	2008-02-15T10:45:14	40.62	140.37	7.0	JMA	ISC	ISC	11437949	1.0	JMA	EASTERN HONSHU, JAPAN
2736349	2008-01-22T20:05:34	40.71	140.36	11.0	JMA	ISC	ISC	13339791	0.5	JMA	EASTERN HONSHU, JAPAN

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Magnitude	Mag Author	Event Location Name
2611249	2007-07-21T21:54:20	40.58	140.36	7.0	JMA	ISC	ISC	12775681	0.5	JMA	EASTERN HONSHU, JAPAN
2547393	2007-06-28T14:20:55	40.58	140.36	7.0	JMA	ISC	ISC	12690421	0.2	JMA	EASTERN HONSHU, JAPAN
2543411	2007-06-28T03:04:44	40.65	140.34	21.0	JMA	ISC	ISC	12690018	0.8	JMA	EASTERN HONSHU, JAPAN
2410490	2007-04-02T13:36:31	40.57	140.36	7.0	JMA	ISC	ISC	11913397	0.5	JMA	EASTERN HONSHU, JAPAN
2424291	2007-02-08T10:04:43	40.61	140.38	7.0	JMA	ISC	ISC	11498492	0.9	JMA	EASTERN HONSHU, JAPAN

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Magnitude	Mag Author	Event Location Name
2393769	2006-11-25T19:09:20	40.59	140.35	7.0	JMA	ISC	ISC	10122914	0.3	JMA	EASTERN HONSHU, JAPAN
2353844	2006-10-18T23:35:31	40.59	140.37	8.0	JMA	ISC	ISC	10096146	0.9	JMA	EASTERN HONSHU, JAPAN
2364993	2006-09-23T17:03:05	40.69	140.41	10.0	JMA	ISC	ISC	10088713	0.5	JMA	EASTERN HONSHU, JAPAN
2305773	2006-09-07T20:53:24	40.59	140.36	8.0	JMA	ISC	ISC	10080682	0.5	JMA	EASTERN HONSHU, JAPAN
2274819	2006-09-02T21:26:45	40.6	140.36	8.0	JMA	ISC	ISC	10079299	1.5	JMA	EASTERN HONSHU, JAPAN
2266182	2006-09-01T19:04:58	40.6	140.35	8.0	JMA	ISC	ISC	10078891	1.7	JMA	EASTERN HONSHU, JAPAN
2386263	2006-08-27T16:03:20	40.59	140.36	8.0	JMA	ISC	ISC	9999550	0.6	JMA	EASTERN HONSHU, JAPAN
2320529	2006-08-09T19:57:37	40.6	140.37	9.0	JMA	ISC	ISC	9990879	1.0	JMA	EASTERN HONSHU, JAPAN
2275918	2006-08-03T03:18:01	40.6	140.36	8.0	JMA	ISC	ISC	9988602	0.5	JMA	EASTERN HONSHU, JAPAN
2387684	2006-07-28T09:14:35	40.59	140.36	8.0	JMA	ISC	ISC	9829121	1.6	JMA	EASTERN HONSHU, JAPAN
2386998	2006-07-28T04:33:28	40.59	140.36	8.0	JMA	ISC	ISC	9829072	1.3	JMA	EASTERN HONSHU, JAPAN
2375055	2006-07-24T13:33:59	40.59	140.36	7.0	JMA	ISC	ISC	9827985	0.1	JMA	EASTERN HONSHU, JAPAN
2374146	2006-07-24T07:38:23	40.59	140.36	8.0	JMA	ISC	ISC	9827912	1.2	JMA	EASTERN HONSHU, JAPAN
2373306	2006-07-24T00:28:44	40.59	140.36	8.0	JMA	ISC	ISC	9827844	1.0	JMA	EASTERN HONSHU, JAPAN
2360200	2006-07-20T00:20:25	40.59	140.36	8.0	JMA	ISC	ISC	9826881	0.7	JMA	EASTERN HONSHU, JAPAN
2315791	2006-07-09T14:49:43	40.59	140.35	6.0	JMA	ISC	ISC	9823857	-0.1	JMA	EASTERN HONSHU, JAPAN
2314512	2006-07-09T09:22:14	40.59	140.36	8.0	JMA	ISC	ISC	9823774	0.8	JMA	EASTERN HONSHU, JAPAN
2188163	2006-06-02T17:36:07	40.59	140.35	7.0	JMA	ISC	ISC	9812171	0.8	JMA	EASTERN HONSHU, JAPAN
2195521	2006-03-04T09:48:57	40.63	140.41	7.0	JMA	ISC	ISC	10597109	0.8	JMA	EASTERN HONSHU, JAPAN
2182154	2006-02-01T01:50:01	40.65	140.32	15.0	JMA	ISC	ISC	9488566	0.9	JMA	EASTERN HONSHU, JAPAN
2280624	2006-01-27T19:35:37	40.71	140.28	173.0	JMA	ISC	ISC	9486887	1.7	JMA	EASTERN HONSHU, JAPAN
2262724	2006-01-25T10:10:21	40.61	140.36	7.0	JMA	ISC	ISC	9485821	0.1	JMA	EASTERN HONSHU, JAPAN
2221933	2006-01-12T13:22:41	40.6	140.36	8.0	JMA	ISC	ISC	9480714	1.0	JMA	EASTERN HONSHU, JAPAN
2219521	2006-01-11T19:54:09	40.61	140.36	8.0	JMA	ISC	ISC	9480444	1.5	JMA	EASTERN HONSHU, JAPAN
2182372	2006-01-01T03:34:40	40.62	140.2	181.0	JMA	ISC	ISC	9476106	1.9	JMA	EASTERN HONSHU, JAPAN

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Mag Type	Magnitude	Mag Author	Event Location Name
2162099	2005-12-29T21:40:16	40.65	140.33	18.0	JMA	ISC	ISC	9127655		0.7	JMA	EASTERN HONSHU, JAPAN
2162096	2005-12-29T21:39:35	40.66	140.33	15.0	JMA	ISC	ISC	9127654		1.0	JMA	EASTERN HONSHU, JAPAN
2162092	2005-12-29T21:39:07	40.64	140.32	15.0	JMA	ISC	ISC	9127653		0.9	JMA	EASTERN HONSHU, JAPAN
2129436	2005-12-19T15:41:31	40.67	140.29	147.0	JMA	ISC	ISC	9124988		2.0	JMA	EASTERN HONSHU, JAPAN
2048566	2005-11-04T10:19:15	40.64	140.35	22.0	JMA	ISC	ISC	9063153		0.7	JMA	EASTERN HONSHU, JAPAN
2043936	2005-11-03T19:54:43	40.6	140.35	8.0	JMA	ISC	ISC	9062917		0.7	JMA	EASTERN HONSHU, JAPAN
2039976	2005-11-03T10:03:15	40.64	140.37	9.0	JMA	ISC	ISC	9062703		0.3	JMA	EASTERN HONSHU, JAPAN
2039967	2005-11-03T10:02:42	40.64	140.36	9.0	JMA	ISC	ISC	9062702		1.7	JMA	EASTERN HONSHU, JAPAN
2031931	2005-11-02T13:43:59	40.59	140.34	169.0	JMA	ISC	ISC	9062319		1.6	JMA	EASTERN HONSHU, JAPAN
2128337	2005-10-16T08:46:43	40.69	140.25	10.0	JMA	ISC	ISC	9055900		0.3	JMA	EASTERN HONSHU, JAPAN
2128321	2005-10-16T08:43:25	40.61	140.36	9.0	JMA	ISC	ISC	9055897		1.7	JMA	EASTERN HONSHU, JAPAN
2115409	2005-10-13T15:43:32	40.64	140.36	8.0	JMA	ISC	ISC	9055038		0.5	JMA	EASTERN HONSHU, JAPAN
2115401	2005-10-13T15:43:17	40.65	140.36	9.0	JMA	ISC	ISC	9055037		0.8	JMA	EASTERN HONSHU, JAPAN
2061197	2005-10-06T09:13:10	40.61	140.37	10.0	JMA	ISC	ISC	9052691		1.0	JMA	EASTERN HONSHU, JAPAN
2154421	2005-09-24T10:42:14	40.61	140.33	5.0	JMA	ISC	ISC	9048430		-0.6	JMA	EASTERN HONSHU, JAPAN
2154414	2005-09-24T10:41:14	40.61	140.37	9.0	JMA	ISC	ISC	9048429		1.1	JMA	EASTERN HONSHU, JAPAN
2132155	2005-09-19T06:35:39	40.61	140.37	9.0	JMA	ISC	ISC	9044115		1.6	JMA	EASTERN HONSHU, JAPAN
2131961	2005-09-19T05:18:01	40.61	140.37	9.0	JMA	ISC	ISC	9044099		1.4	JMA	EASTERN HONSHU, JAPAN
2131807	2005-09-19T04:12:00	40.6	140.36	8.0	JMA	ISC	ISC	9044080		1.0	JMA	EASTERN HONSHU, JAPAN
2094672	2005-07-11T15:40:16	40.67	140.35	8.0	JMA	ISC	ISC	8905093		0.4	JMA	EASTERN HONSHU, JAPAN
2094220	2005-07-11T14:05:41	40.66	140.36	7.0	JMA	ISC	ISC	8905074		0.5	JMA	EASTERN HONSHU, JAPAN
2075041	2005-07-08T18:32:13	40.678	140.327	151.8	ISC	ISC	ISC	7667589	mb	4.2	NEIC	EASTERN HONSHU, JAPAN
2053101	2005-07-05T12:51:16	40.67	140.36	9.0	JMA	ISC	ISC	8902694		1.8	JMA	EASTERN HONSHU, JAPAN
2041482	2005-07-03T22:16:54	40.68	140.43	12.0	JMA	ISC	ISC	8902132		0.3	JMA	EASTERN HONSHU, JAPAN
2022155	2005-07-01T10:11:28	40.61	140.38	9.0	JMA	ISC	ISC	8898690		0.5	JMA	EASTERN HONSHU, JAPAN
2101652	2005-06-30T15:39:23	40.67	140.36	29.0	JMA	ISC	ISC	8708881		0.4	JMA	EASTERN HONSHU, JAPAN
2113192	2005-05-30T18:58:00	40.67	140.37	9.0	JMA	ISC	ISC	8689424		0.5	JMA	EASTERN HONSHU, JAPAN
2013679	2005-05-17T06:19:27	40.63	140.41	7.0	JMA	ISC	ISC	8684690		1.1	JMA	EASTERN HONSHU, JAPAN
1999350	2005-05-14T09:49:33	40.68	140.36	10.0	JMA	ISC	ISC	8682235		1.0	JMA	EASTERN HONSHU, JAPAN
1980535	2005-05-10T22:04:09	40.67	140.36	10.0	JMA	ISC	ISC	8681082		1.6	JMA	EASTERN HONSHU, JAPAN
1973655	2005-05-09T12:34:44	40.68	140.36	10.0	JMA	ISC	ISC	8680608		0.7	JMA	EASTERN HONSHU, JAPAN
2117137	2005-04-30T01:42:37	40.67	140.36	10.0	JMA	ISC	ISC	8643735		2.2	JMA	EASTERN HONSHU, JAPAN
2017637	2005-04-17T09:37:27	40.73	140.37	12.0	JMA	ISC	ISC	8635534		2.2	JMA	EASTERN HONSHU, JAPAN
1986455	2005-02-14T16:11:45	40.73	140.38	11.0	JMA	ISC	ISC	8414712		1.0	JMA	EASTERN HONSHU, JAPAN
1967787	2005-02-09T17:04:28	40.64	140.43	8.0	JMA	ISC	ISC	8413192		0.8	JMA	EASTERN HONSHU, JAPAN

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Magnitude	Mag Author	Event Location Name
1876017	2004-11-21T01:38:38	40.74	140.37	12.0	JMA	ISC	ISC	7916450	2.2	JMA	EASTERN HONSHU, JAPAN
1795237	2004-10-08T08:45:14	40.67	140.37	10.0	JMA	ISC	ISC	7899621	0.9	JMA	EASTERN HONSHU, JAPAN
1910345	2004-06-28T16:41:12	40.64	140.2	152.0	JMA	ISC	ISC	7601426	1.2	JMA	EASTERN HONSHU, JAPAN
1753070	2004-01-31T23:56:38	40.73	140.37	12.0	JMA	ISC	ISC	7246539	1.7	JMA	EASTERN HONSHU, JAPAN
1746878	2004-01-27T10:59:45	40.73	140.37	12.0	JMA	ISC	ISC	7242670	1.5	JMA	EASTERN HONSHU, JAPAN
1746087	2004-01-26T20:54:19	40.73	140.37	11.0	JMA	ISC	ISC	7242368	1.9	JMA	EASTERN HONSHU, JAPAN
1746040	2004-01-26T20:03:46	40.74	140.37	11.0	JMA	ISC	ISC	7242349	0.8	JMA	EASTERN HONSHU, JAPAN
1745684	2004-01-26T16:02:30	40.73	140.37	11.0	JMA	ISC	ISC	7242203	0.9	JMA	EASTERN HONSHU, JAPAN
1741515	2004-01-24T01:00:42	40.73	140.39	10.0	JMA	ISC	ISC	7240503	1.3	JMA	EASTERN HONSHU, JAPAN
1730777	2004-01-17T21:43:21	40.66	140.43	9.0	JMA	ISC	ISC	7236263	0.6	JMA	EASTERN HONSHU, JAPAN
1710276	2004-01-06T12:52:01	40.73	140.38	12.0	JMA	ISC	ISC	7228218	1.6	JMA	EASTERN HONSHU, JAPAN

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Magnitude	Mag Author	Event Location Name
1539290	2003-04-16T15:26:14	40.68	140.37	9.0	JMA	ISC	ISC	6694386	0.7	JMA	EASTERN HONSHU, JAPAN
1477914	2003-01-10T09:10:51	40.67	140.37	10.0	JMA	ISC	ISC	6534194	1.0	JMA	EASTERN HONSHU, JAPAN
1469399	2003-01-04T14:35:43	40.66	140.37	10.0	JMA	ISC	ISC	6530936	2.4	JMA	EASTERN HONSHU, JAPAN

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Mag Type	Magnitude	Mag Author	Event Location Name
1437121	2002-12-17T14:25:05	40.73	140.38	11.0	JMA	ISC	ISC	6259782		1.5	JMA	EASTERN HONSHU, JAPAN
1344781	2002-07-03T22:06:08	40.63	140.18	32.0	JMA	ISC	ISC	5316335		0.7	JMA	EASTERN HONSHU, JAPAN
1334916	2002-06-20T08:19:08	40.643	140.29	154.0	ISC	ISC	ISC	3794563	mb	3.5	ISC	EASTERN HONSHU, JAPAN
1347701	2002-05-22T20:49:28	40.71	140.26	169.0	JMA	ISC	ISC	5259836		1.5	JMA	EASTERN HONSHU, JAPAN
1348545	2002-04-21T00:27:10	40.62	140.35	16.0	JMA	ISC	ISC	4337412		1.4	JMA	EASTERN HONSHU, JAPAN
1251411	2002-03-05T08:39:36	40.73	140.38	12.0	JMA	ISC	ISC	4309647		2.0	JMA	EASTERN HONSHU, JAPAN

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Mag Type	Magnitude	Mag Author	Event Location Name
984754	2000-11-09T13:06:55	40.73	140.38	15.0	JMA	ISC	ISC	2644162		2.0	JMA	EASTERN HONSHU, JAPAN
986021	2000-06-22T11:44:24	40.72	140.36	14.0	JMA	ISC	ISC	2509118		1.6	JMA	EASTERN HONSHU, JAPAN

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Magnitude	Mag Author	Event Location Name
834393	1999-09-18T15:09:07	40.73	140.39	15.0	JMA	ISC	ISC	1852337	1.4	JMA	EASTERN HONSHU, JAPAN
833613	1999-09-18T06:21:23	40.73	140.39	15.0	JMA	ISC	ISC	1852258	1.6	JMA	EASTERN HONSHU, JAPAN
741812	1999-08-06T17:03:53	40.74	140.36	15.0	JMA	ISC	ISC	1823728	1.3	JMA	EASTERN HONSHU, JAPAN

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Mag Type	Magnitude	Mag Author	Event Location Name
406400	1994-11-22T17:43:57	40.7059	140.3669	22.0	ISC	ISC	ISC	143304		2.0	JMA	EASTERN HONSHU, JAPAN
419749	1994-10-27T20:12:43	40.73	140.35	13.0	JMA	ISC	ISC	153180		1.7	JMA	EASTERN HONSHU, JAPAN

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Magnitude	Mag Author	Event Location Name
254552	1992-07-20T17:13:09	40.7276	140.3684	12.0	ISC	ISC	ISC	283190	2.7	JMA	EASTERN HONSHU, JAPAN
254548	1992-07-20T17:12:34	40.7417	140.3441	9.5	ISC	ISC	ISC	283189	2.3	JMA	EASTERN HONSHU, JAPAN
258694	1992-04-30T19:19:37	40.73	140.38	7.0	JMA	ISC	ISC	297994	2.2	JMA	EASTERN HONSHU, JAPAN

Event ID	Time	Latitude	Longitude	Depth/km	Author	Catalog	Contributor	Contributor ID	Mag Type	Magnitude	Mag Author	Event Location Name
232647	1991-09-20T21:49:41	40.6794	140.4135	8.3	ISC	ISC	ISC	320527	mb	3.9	ISC	EASTERN HONSHU, JAPAN
227797	1991-08-13T07:52:40	40.72	140.36	10.0	JMA	ISC	ISC	322657		2.6	JMA	EASTERN HONSHU, JAPAN