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Major geomagnetic storms (Kanoya)

Significant geomagnetic storms observed at Kanoya (Kagoshima Prefecture) since 1958 are ranked below.

Ranking	Start time (UTC)	End time (UTC)	Range (nT)			Amplitude of sudden commencement in H (nT)
Ranking	Year Month Day Hour Minute	Month Day Hour	Horizontal component	Declination	Vertical component	Amplitude of sudden commencement in H (nT)
1	1989 03 13 01:27	03 15 24	690	329	205	56
2	1982 07 13 16:17	-	643	338	288	124
3	1958 02 11 01:25	02 13 06	>593*	435	223	124
4	2024 05 10 17:05	05 14 00	549	259	264	90
5	1967 05 25 12:35	05 29 20	543	160	148	106
6	1959 07 15 08:02	07 16 24	542	196	109	86
7	2001 03 31 00:52	04 01 15	526	312	183	88
8	2004 11 07 18:27	C	488	209	168	51
9	1992 05 09 19:57	05 11 21	485	185	119	117
10	2003 11 20 08:02	11 21 24	472	185	132	33
11	1991 03 24 03:41	03 26 20	>464*	192	183	158
12	2024 10 10 15:14	10 13 00	443	260	162	104
13	2000 07 15 14:36	07 16 18	434	166	148	157
14	2005 05 15 02:38	05 16 18	430	157	>161*	50
15	2003 10 29 06:11	C	429	255	136	104
15	1960 11 12 13:48	C	429	234	181	47
17	1960 04 30 12:13	05 01 23	411	141	124	133
18	1960 03 31 09:55	04 02 23	402	193	172	9
19	1958 07 08 07:48	07 10 11	>393*	210	105	>72*
20	2004 11 09 18:49	11 12 24	390	198	125	63
21	1991 10 28 10:54	C	386	141	139	62
22	1991 07 08 16:36	07 10 20	378	180	248	162
23	1990 04 10 00.8	04 11 21	377	129	89	SG
24	1982 09 05 22:50	09 08 01	371	181	166	28
25	1983 02 04 16:14	02 06 21	370	156	120	108
26	2001 11 06 01:51	11 07 20	369	332	192	134
27	1982 09 21 03:39	09 23 21	368	157	126	50
28	2003 10 30 16:37	11 02 21	367	265	211	32

SG: Geomagnetic storm of the gradual commencement type
C: Commencement before the end of the previous one
*: Overscaling on recording paper