Top 50 geomagnetic storms of 2011

On this page you will find an overview of the strongest geomagnetic storms of 2011 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	2011/10/25	-147nT	38	7+	564.7km/sec	24.91nT	-19.04nT
2	2011/09/26	-118nT	38	6+	698.5km/sec	34.91nT	-31.01nT
3	2011/08/06	-115nT	31	6+	619.4km/sec	20.83nT	-14.73nT
4	2011/09/27	-102nT	30	6-	684.3km/sec	8.62nT	-4.28nT
5	2011/08/05	-96nT	42	8-	672.6km/sec	36.26nT	-21.17nT
6	2011/03/01	-88nT	27	5+	663.4km/sec	17.54nT	-15.00nT
7	2011/03/11	-83nT	37	6-	494.6km/sec	16.28nT	-13.03nT
8	2011/05/28	-80nT	45	6+	649.1km/sec	13.45nT	-12.63nT
9	2011/10/24	-79nT	26	7	522.7km/sec	24.13nT	-20.37nT
10	2011/09/10	-75nT	40	6-	586.4km/sec	20.38nT	-13.65nT
11	2011/09/09	-72nT	30	6-	587.3km/sec	24.68nT	-22.69nT
12	2011/09/17	-72nT	32	5+	556.1km/sec	15.07nT	-11.95nT
13	2011/09/28	-68nT	20	5-	521.7km/sec	7.09nT	-6.55nT
14	2011/11/01	-66nT	19	5-	455.4km/sec	13.79nT	-12.82nT
15	2011/02/04	-63nT	22	6-	590.1km/sec	23.15nT	-19.63nT
16	2011/03/10	-62nT	19	5-	396.2km/sec	13.25nT	-11.41nT
17	2011/04/06	-60nT	26	5	583.6km/sec	17.03nT	-10.58nT
18	2011/07/05	-59nT	11	4+	422.2km/sec	7.02nT	-7.01nT
19	2011/11/02	-58nT	9	3-	396.7km/sec	7.80nT	-5.93nT
20	2011/03/12	-58nT	15	5-	599.4km/sec	10.01nT	-7.47nT
21	2011/03/02	-57nT	18	4+	695.2km/sec	9.72nT	-6.74nT
22	2011/09/29	-56nT	24	6-	594.3km/sec	12.78nT	-10.19nT
23	2011/07/04	-55nT	11	4	466.8km/sec	9.95nT	-9.54nT
24	2011/10/26	-54nT	4	1+	494.3km/sec	8.29nT	-4.50nT
25	2011/02/05	-54nT	16	5	670.4km/sec	12.61nT	-10.29nT
26	2011/05/29	-54nT	34	5+	822.3km/sec	9.61nT	-9.21nT
27	2011/08/07	-54nT	7	4-	606.3km/sec	5.38nT	-3.59nT
28	2011/09/12	-53nT	27	5-	677.0km/sec	8.38nT	-7.43nT
29	2011/09/11	-50nT	12	4-	631.7km/sec	7.58nT	-6.31nT
30	2011/07/01	-48nT	13	4-	437.0km/sec	10.86nT	-9.70nT
31	2011/04/12	-48nT	23	5	657.3km/sec	13.22nT	-9.55nT
32	2011/05/02	-47nT	20	4+	725.7km/sec	6.35nT	-5.71nT
33	2011/09/18	-47nT	5	2	502.5km/sec	11.83nT	-3.57nT
34	2011/04/30	-46nT	26	5-	733.4km/sec	17.83nT	-14.91nT
35	2011/04/13	-45nT	12	4-	619.0km/sec	6.53nT	-4.91nT
36	2011/06/05	-45nT	25	6+	560.5km/sec	28.92nT	-20.99nT
37	2011/10/09	-44nT	10	3+	366.4km/sec	10.84nT	-7.32nT
38	2011/10/27	-44nT	4	2	459.5km/sec	5.25nT	-3.72nT
39	2011/05/30	-44nT	8	3-	675.2km/sec	5.22nT	-4.55nT
40	2011/08/08	-43nT	7	2+	639.1km/sec	6.03nT	-3.85nT
41	2011/10/05	-43nT	16	4+	485.3km/sec	14.02nT	-10.53nT
42	2011/04/07	-43nT	5	3	566.1km/sec	6.34nT	-3.29nT
43	2011/01/07	-42nT	16	5	622.6km/sec	14.81nT	-10.85nT
44	2011/09/13	-42nT	18	5-	638.7km/sec	7.23nT	-6.24nT
45	2011/11/30	-41nT	12	3+	472.6km/sec	10.30nT	-7.74nT
46	2011/10/01	-41nT	16	5-	586.7km/sec	7.59nT	-7.04nT
47	2011/07/30	-40nT	16	5	562.6km/sec	14.66nT	-11.56nT
48	2011/04/09	-40nT	6	3	463.6km/sec	6.84nT	-6.32nT
49	2011/11/05	-40nT	3	2-	351.3km/sec	7.72nT	-5.76nT
50	2011/02/14	-40nT	13	5+	412.2km/sec	21.32nT	-18.79nT

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