Top 50 geomagnetic storms of 2004

On this page you will find an overview of the strongest geomagnetic storms of 2004 together with links to more information in our archive. Storms are ranked by the Disturbance storm-time index (Dst) that is designed to measure the magnetic signature of magnetospheric currents observed in the equatorial regions. The Dst index is provided by the World Data Center for geomagnetism in Kyoto.

		Dst	Ap	Kp max	Speed	IMF Bt	IMF Bz
1	2004/11/08	-374nT	140	9-	763.8km/sec	48.31nT	-47.70nT
2	2004/11/10	-263nT	161	9-	818.8km/sec	36.84nT	-29.22nT
3	2004/11/09	-214nT	119	9-	853.0km/sec	41.61nT	-32.81nT
4	2004/07/27	-170nT	186	9-	1037.1km/sec	26.58nT	-21.96nT
5	2004/07/25	-136nT	154	8	713.8km/sec	27.46nT	-23.34nT
6	2004/01/22	-130nT	64	7	701.7km/sec	30.18nT	-20.73nT
7	2004/08/30	-129nT	42	7	433.7km/sec	15.34nT	-14.66nT
8	2004/11/07	-117nT	50	8	729.7km/sec	59.75nT	-50.19nT
9	2004/04/04	-117nT	18	6+	540.4km/sec	18.37nT	-5.05nT
10	2004/11/11	-106nT	24	5	661.2km/sec	17.24nT	-7.06nT
11	2004/04/03	-104nT	41	6+	523.2km/sec	12.82nT	-10.63nT
12	2004/07/23	-99nT	52	6	727.4km/sec	14.64nT	-14.32nT
13	2004/07/26	-94nT	47	7+	943.6km/sec	24.64nT	-21.00nT
14	2004/02/11	-93nT	28	6+	472.3km/sec	21.51nT	-15.32nT
15	2004/11/12	-92nT	30	5-	718.1km/sec	13.31nT	-10.21nT
16	2004/08/31	-90nT	28	5+	526.6km/sec	11.43nT	-11.19nT
17	2004/07/28	-88nT	15	4-	920.1km/sec	5.50nT	-4.73nT
18	2004/07/22	-85nT	31	7	713.6km/sec	19.54nT	-16.80nT
19	2004/01/25	-81nT	38	6-	536.2km/sec	12.54nT	-11.22nT
20	2004/03/10	-78nT	45	6+	818.1km/sec	14.81nT	-11.27nT
21	2004/01/23	-78nT	43	6	586.0km/sec	13.52nT	-11.45nT
22	2004/07/17	-76nT	21	6	572.5km/sec	18.13nT	-16.32nT
23	2004/03/09	-72nT	28	6-	707.1km/sec	18.31nT	-11.71nT
24	2004/07/29	-66nT	6	2+	623.3km/sec	4.63nT	-3.74nT
25	2004/11/13	-64nT	7	2+	542.3km/sec	7.11nT	-4.71nT
26	2004/03/11	-63nT	40	6+	815.3km/sec	9.35nT	-7.94nT
27	2004/01/27	-62nT	17	4	530.1km/sec	10.63nT	-9.35nT
28	2004/04/05	-62nT	24	6+	480.3km/sec	18.55nT	-16.28nT
29	2004/04/06	-58nT	25	5	647.6km/sec	12.98nT	-9.95nT
30	2004/11/14	-58nT	8	4	559.3km/sec	6.28nT	-4.72nT
31	2004/01/26	-56nT	18	4	498.4km/sec	12.58nT	-11.52nT
32	2004/12/13	-56nT	10	4+	430.2km/sec	15.66nT	-9.85nT
33	2004/11/25	-53nT	20	4+	580.2km/sec	9.56nT	-8.38nT
34	2004/01/24	-52nT	18	5	545.2km/sec	12.05nT	-10.99nT
35	2004/08/09	-51nT	14	4+	399.5km/sec	11.93nT	-9.24nT
36	2004/03/12	-51nT	28	6-	684.3km/sec	7.61nT	-6.69nT
37	2004/07/30	-50nT	7	3+	566.4km/sec	9.49nT	-5.96nT
38	2004/11/28	-50nT	13	4-	458.5km/sec	15.06nT	-9.52nT
39	2004/01/07	-50nT	29	5	800.1km/sec	15.45nT	-11.18nT
40	2004/01/15	-50nT	18	4	584.3km/sec	13.12nT	-12.18nT
41	2004/02/12	-50nT	30	5	764.8km/sec	21.94nT	-16.22nT
42	2004/10/13	-49nT	33	5	546.6km/sec	12.56nT	-10.59nT
43	2004/11/27	-47nT	11	4-	476.0km/sec	6.94nT	-6.59nT
44	2004/12/29	-47nT	16	4+	472.5km/sec	10.46nT	-8.12nT
45	2004/11/17	-46nT	6	3	445.3km/sec	6.37nT	-4.61nT
46	2004/09/14	-45nT	32	5+	627.0km/sec	16.25nT	-9.71nT
47	2004/01/10	-45nT	26	5+	597.2km/sec	15.72nT	-11.76nT
48	2004/11/21	-44nT	17	4	649.7km/sec	12.46nT	-6.64nT
49	2004/11/20	-44nT	20	4	559.1km/sec	15.75nT	-12.42nT
50	2004/12/07	-44nT	15	4-	547.0km/sec	8.77nT	-7.24nT

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