Solar Cycle 23 - Top 50 geomagnetic storms

On this page you will find an overview of the strongest geomagnetic storms from Solar Cycle 23 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	2003/11/20	-422nT	150	9-	766.3km/sec	56.15nT	-52.93nT
2	2001/03/31	-387nT	192	9-	792.2km/sec	72.67nT	-47.41nT
3	2003/10/30	-383nT	191	9	1980.0km/sec	40.16nT	-35.50nT
4	2004/11/08	-374nT	140	9-	763.8km/sec	48.31nT	-47.70nT
5	2003/10/29	-350nT	204	9	1900.0km/sec	63.32nT	-53.85nT
6	2003/11/21	-309nT	42	7-	575.2km/sec	20.23nT	-10.20nT
7	2003/10/31	-307nT	116	8+	1258.7km/sec	41.28nT	-18.52nT
8	2000/07/16	-300nT	50	8-	979.7km/sec	48.59nT	-2.76nT
9	2000/04/07	-292nT	74	9-	637.3km/sec	28.14nT	-17.29nT
10	2001/11/06	-292nT	142	9-	434.0km/sec	81.30nT	-78.17nT
11	2000/04/06	-291nT	82	8+	604.3km/sec	33.76nT	-32.76nT
12	2000/07/15	-289nT	164	9	-	59.55nT	-59.27nT
13	2001/04/11	-271nT	85	8+	764.4km/sec	42.33nT	-36.63nT
14	2004/11/10	-263nT	161	9-	818.8km/sec	36.84nT	-29.22nT
15	2005/05/15	-247nT	87	8+	995.2km/sec	56.16nT	-45.89nT
16	1999/10/22	-237nT	91	8	711.4km/sec	37.09nT	-31.49nT
17	2001/04/12	-236nT	50	7+	732.3km/sec	31.43nT	-14.28nT
18	2000/08/12	-234nT	123	8-	694.8km/sec	34.20nT	-29.87nT
19	2001/04/01	-228nT	38	6-	850.9km/sec	14.64nT	-7.40nT
20	2001/11/24	-221nT	104	8+	901.6km/sec	70.81nT	-49.29nT
21	2004/11/09	-214nT	119	9-	853.0km/sec	41.61nT	-32.81nT
22	1998/09/25	-207nT	117	8+	870.0km/sec	35.84nT	-23.28nT
23	1998/05/04	-205nT	101	9-	895.7km/sec	44.69nT	-37.03nT
24	2000/09/17	-201nT	56	8+	851.7km/sec	41.98nT	-35.34nT
25	2000/09/18	-193nT	70	8-	891.2km/sec	39.54nT	-7.80nT
26	2001/10/21	-187nT	57	8-	696.9km/sec	32.01nT	-26.73nT
27	2005/08/24	-184nT	102	9-	760.5km/sec	58.79nT	-55.68nT
28	2000/10/05	-181nT	116	8-	551.4km/sec	28.92nT	-26.28nT
29	2002/09/08	-181nT	36	7+	547.8km/sec	19.94nT	-17.09nT
30	2001/10/22	-177nT	96	7+	688.3km/sec	22.88nT	-14.73nT
31	2002/09/07	-177nT	57	7+	585.0km/sec	26.92nT	-26.57nT
32	2002/10/01	-176nT	67	7+	442.7km/sec	25.50nT	-23.68nT
33	1999/09/22	-173nT	50	8	620.9km/sec	32.42nT	-22.64nT
34	2004/07/27	-170nT	186	9-	1037.1km/sec	26.58nT	-21.96nT
35	2001/10/03	-166nT	69	7	599.0km/sec	23.97nT	-22.28nT
36	2001/10/23	-165nT	17	5+	549.2km/sec	9.92nT	-6.95nT
37	2001/11/07	-165nT	19	6-	700.6km/sec	9.71nT	-8.41nT
38	2006/12/15	-162nT	94	8+	852.8km/sec	18.10nT	-14.91nT
39	2002/10/02	-160nT	53	7+	536.1km/sec	16.06nT	-14.08nT
40	2000/11/06	-159nT	55	7	644.0km/sec	17.44nT	-13.65nT
41	2001/10/28	-157nT	44	7-	532.0km/sec	21.99nT	-18.83nT
42	1998/08/27	-155nT	144	8	805.3km/sec	17.38nT	-16.06nT
43	1999/09/23	-155nT	28	6+	583.1km/sec	17.32nT	-14.26nT
44	2000/11/07	-151nT	46	7-	646.4km/sec	24.82nT	-16.57nT
45	1998/11/08	-149nT	66	8-	651.0km/sec	37.57nT	-26.65nT
46	2001/03/20	-149nT	74	7+	458.8km/sec	22.36nT	-20.83nT
47	2002/04/20	-149nT	70	7+	671.2km/sec	21.53nT	-19.78nT
48	2001/10/01	-148nT	48	6	568.1km/sec	18.20nT	-15.11nT
49	2003/08/18	-148nT	108	7+	528.9km/sec	27.80nT	-19.48nT
50	2000/05/24	-147nT	93	8	719.0km/sec	37.62nT	-30.70nT

Latest news

Sunday, 8 December 2024

X2.2 solar flare, SDO outage

Thursday, 21 November 2024

Major far side eruption, S1 radiation storm

Monday, 11 November 2024

Coronal hole faces Earth

More news

Latest forum messages

Unexplained proton activity 4 jsoc 61 Filaments and prominences 594 Changelog/Featurelog 162 Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 1

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

SpaceWeatherLive Pro

Support SpaceWeatherLive with our merchandise

Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare	2024/12/08	X2.2
Last M-flare	2024/12/21	M1.9
Last geomagnetic storm	2024/12/17	Kp5+ (G1)

Spotless days
Last spotless day	2022/06/08

Monthly mean Sunspot Number
November 2024	152.5 -13.9
December 2024	100.9 -51.6
Last 30 days	116.1 -38.9

This day in history*

Solar flares
1	2023	M4.2
2	2015	M4.07
3	2024	M1.9
4	2014	M1.79
5	1999	M1.61

		Dst	G
1	2015	-159	G3
2	2002	-75	G2
3	2001	-67
4	1980	-64	G1
5	1982	-64	G1

*since 1994

Social networks

SpaceWeatherLive