Top 50 geomagnetic storms

On this page you will find an overview of the strongest geomagnetic storms since January 1994 together with links to more information in our archive. The Kp-values on this page are the official, finalized Kp-values from the GFZ in Potsdam, Germany. The Ap-index provides a daily geomagnetic activity average. This page is updated daily. Times are in UTC.

Ap 00-03h 03-06h 06-09h 09-12h 12-15h 15-18h 18-21h 21-00h Kp max
12003/10/292045-4988-8-9-9-9View archive
22001/03/311927-9-9-6+788+7+9-View archive
32003/10/301919-7+5+5-57999View archive
42004/07/271868+8-7+89-8+6+69-View archive
52000/07/1516434-5-4+89-99-9View archive
62004/11/101618-8+9-8+7+6+5+4+9-View archive
72004/07/2515477+6+8-7+87+7+8View archive
82003/11/2015014-6+6+8-9-9-89-View archive
91998/08/27144888-7-7-7-76+8View archive
102001/11/061429-9-755+7-6+6+9-View archive
112004/11/081409-9-8+753-4+5+9-View archive
122000/08/1212357+8-8-7+7+6+4-8-View archive
132004/11/091196-65677-9-79-View archive
141998/09/251178-88+76+6-3-2+8+View archive
152003/10/311168+8-7+7-7+5-44+8+View archive
162000/10/051165+7-8-7+8-7-6+58-View archive
172003/05/2910944-4-378-8+8+8+View archive
182015/03/1710825-6-5+8-8-7+8-8-View archive
192003/08/181086-6+77-77+6+67+View archive
202017/09/0810685-4+58+7+6+5-8+View archive
212001/11/241043+5+8+78-7+35-8+View archive
222005/08/241023-3+6+9-7+7-6+4+9-View archive
232005/09/111016+78-6+75+65-8-View archive
241998/05/0410169-8+6-64-2+39-View archive
251995/04/0710046-65+787+68
261994/04/171007-8+8+75-333+8+
272001/10/229675-4-667+777+View archive
281994/02/21952+3-3+7+8-8-678-
292006/12/15948+8-7-6-6444-8+View archive
302000/05/249388-66-5564+8View archive
311994/04/03926-6+7-66-5+7-7+7+
322005/05/089165+4-68+8-5+4-8+View archive
331999/10/229178-85+5-4+6-3+8View archive
342005/05/309043+6+6+7+8-7-5-8-View archive
351994/10/03886+776-7-66-4-7
362012/03/09875-6+87+7-6-32+8View archive
372005/05/15876-6-8+8-44558+View archive
382001/04/118532+224-88-8+8+View archive
392005/01/188476-8-6-5+5+56-8-View archive
402000/04/06822-4+3-2+3+7-8+8+8+View archive
411999/02/18805-67-7-7-5+657-View archive
422012/07/15784+5+7-65+6767View archive
432002/05/23783-3-27-8-8+53+8+View archive
442005/09/12755-4+76-5-6677View archive
451998/11/09755-6-7-6+65+7-5-7-View archive
462015/10/07744-66-556+7+67+View archive
472001/03/20745-6-66-7+74+4-7+View archive
482000/04/07749-66444+4-4-9-View archive
492015/06/237278-6+5+6-3-4-3+8-View archive
502013/03/177222+7-6+6-6+7-67-View archive
Current data suggest that it is not possible to see aurora now at middle latitudes
Active geomagnetic conditions
Observed Kp: 4
The solar wind speed is currently moderately high (638.9 km/sec.)

Latest news

Today's space weather

Auroral activity Minor Severe
High latitude 25% 55%
Middle latitude 25% 5%
Predicted Kp max 5
Solar activity
M-class solar flare 1%
X-class solar flare 1%
Moon phase
New Moon

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!

100%

Get instant alerts!

Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2017/12/17Kp5 (G1)
Number of spotless days in 2017:99
Current stretch spotless days:6

This day in history*

Solar flares
11998M8.0
22014M6.9
32002M2.4
41999M1.5
51999C9.4
ApG
1200722
2200413
3200611
420019
520009
*since 1994