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Top 50 geomagnetic storms of 2009

On this page you will find an overview of the strongest geomagnetic storms of 2009 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 maxSpeedIMF BtIMF Bz
12009/07/22-83nT246-491.3km/sec18.41nT-17.83nT
22009/10/23-47nT104-415.6km/sec9.46nT-6.37nT
32009/02/04-42nT144-402.8km/sec11.43nT-9.68nT
42009/07/23-40nT72+551.9km/sec8.57nT-5.86nT
52009/02/14-38nT174+606.7km/sec17.70nT-15.00nT
62009/10/22-38nT134-394.7km/sec11.42nT-9.13nT
72009/08/06-36nT104520.7km/sec14.76nT-13.77nT
82009/10/30-34nT93+385.9km/sec8.06nT-6.61nT
92009/03/13-32nT175-583.1km/sec16.24nT-11.18nT
102009/01/26-29nT113+388.1km/sec11.14nT-9.70nT
112009/10/25-29nT53488.0km/sec5.82nT-3.38nT
122009/08/30-29nT206-483.9km/sec12.75nT-11.64nT
132009/06/28-28nT104444.4km/sec12.20nT-11.14nT
142009/02/05-28nT74-394.4km/sec8.21nT-4.69nT
152009/06/29-27nT74-565.9km/sec9.54nT-6.20nT
162009/03/21-27nT83448.6km/sec11.36nT-9.63nT
172009/04/09-27nT123+488.2km/sec10.88nT-7.20nT
182009/02/15-26nT104-617.5km/sec6.50nT-5.22nT
192009/08/19-26nT83465.1km/sec12.15nT-9.86nT
202009/05/08-26nT114528.4km/sec7.21nT-5.24nT
212009/11/08-26nT73-454.4km/sec11.08nT-8.70nT
222009/03/22-25nT53-467.9km/sec7.39nT-3.49nT
232009/03/24-25nT73-524.8km/sec7.43nT-6.92nT
242009/02/16-25nT42522.5km/sec4.70nT-3.07nT
252009/11/26-25nT62+440.7km/sec7.86nT-5.61nT
262009/04/18-25nT83+545.5km/sec7.47nT-5.95nT
272009/07/24-25nT52599.6km/sec4.70nT-3.32nT
282009/07/14-25nT84-563.7km/sec9.47nT-9.16nT
292009/07/25-24nT42543.0km/sec4.57nT-2.93nT
302009/03/15-23nT83565.0km/sec4.88nT-3.88nT
312009/06/30-23nT42-525.1km/sec4.29nT-3.88nT
322009/02/27-23nT114701.0km/sec10.27nT-6.48nT
332009/08/31-23nT52+464.4km/sec6.49nT-1.81nT
342009/10/24-22nT84425.5km/sec10.29nT-7.91nT
352009/02/23-22nT53483.3km/sec7.57nT-5.14nT
362009/09/21-22nT63485.5km/sec10.26nT-8.25nT
372009/07/20-22nT42+353.8km/sec7.12nT-6.60nT
382009/08/26-21nT32388.9km/sec6.43nT-4.91nT
392009/06/05-21nT42-336.0km/sec5.76nT-5.58nT
402009/03/25-21nT94-515.9km/sec4.81nT-4.51nT
412009/02/17-21nT11448.6km/sec3.06nT-2.57nT
422009/05/09-21nT52530.9km/sec6.04nT-4.59nT
432009/03/14-21nT103580.7km/sec5.15nT-3.89nT
442009/08/09-21nT62475.4km/sec5.27nT-4.40nT
452009/02/06-20nT12343.9km/sec4.98nT-3.62nT
462009/08/05-20nT52405.5km/sec12.94nT-4.87nT
472009/04/13-20nT43-455.3km/sec4.56nT-2.83nT
482009/05/14-19nT83400.5km/sec8.24nT-7.69nT
492009/01/19-19nT94498.0km/sec12.85nT-8.99nT
502009/01/14-19nT62+368.8km/sec9.22nT-8.21nT
© Potsdam - CC BY 4.0 - Matzka, J., Stolle, C., Yamazaki, Y., Bronkalla, O. and Morschhauser, A., 2021. - ©WDC for Geomagnetism, Kyoto
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