Top 50 geomagnetic storms of 2017

On this page you will find an overview of the strongest geomagnetic storms of 2017 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 00-03h03-06h06-09h09-12h12-15h15-18h18-21h21-00hKp max
12017/09/0810685-4+58+7+6+5-8+View archive
22017/09/28515+6+7-5-4-44-5-7-View archive
32017/05/28496+7654-2-11-7View archive
42017/04/224756-5555-4-5+6-View archive
52017/03/27462+55-6-4+5+6+46+View archive
62017/11/08446-6+3+4+54+3+5-6+View archive
72017/07/1644215-5+6-5+65-6View archive
82017/10/13373-4+23+6-5-6-5+6-View archive
92017/09/273733-5-44-4-6-6+6+View archive
102017/09/07363-4-4-4-3-23-8-8-View archive
112017/04/2336445+4+55-44+5+View archive
122017/11/07351-3-3+5-4-4-6+6-6+View archive
132017/03/0135333+5-5-4+5+6-6-View archive
142017/09/15346-4-4+343+5+5-6-View archive
152017/03/02325+4+45-5-3+4+2+5+View archive
162017/10/143054+5-54-433-5View archive
172017/08/31302-35+5+544-3-5+View archive
182017/08/19294+3+5-4+45-34+5-View archive
192017/12/05283+345-54+4-4-5View archive
202017/10/11283+45-4-45-44-5-View archive
212017/09/162855+3+3+44335+View archive
222017/04/20285-6-45-3+3-32+6-View archive
232017/02/01284+3+3+3453+55View archive
242017/11/21274+55-3+34-4-4-5View archive
252017/03/31275-5-4+4-4433+5-View archive
262017/03/28275+5+3+4-3+33+35+View archive
272017/10/122653+44+4+3+34-5View archive
282017/07/172634+444+6-2-2-6-View archive
292017/10/15254+5+3-44+4-31-5+View archive
302017/08/17243-25-5-5-34-4-5-View archive
312017/07/09245325+2343+5+View archive
322017/03/222444-3-3+4-44+4+4+View archive
332017/03/212413+42+35-5+45+View archive
342017/12/17233-35-33+4-5-4-5-View archive
352017/08/232334-32+4+5-5-3-5-View archive
362017/06/16231244-5-4-3+55View archive
372017/03/0623431+4-4-3+545View archive
382017/09/14222213-45+44+5+View archive
392017/08/04222+3+4-4+4+4+3+3-4+View archive
402017/05/20224-4-44-4-4+33-4+View archive
412017/01/31223-33+3+3+4+45-5-View archive
422017/02/02213+4-4-3+3-4-4-4+4+View archive
432017/11/102033+4-4-4-4334View archive
442017/09/18204+4-443-3-3-3+4+View archive
452017/09/02204-5-5-32-3-3-35-View archive
462017/08/20204+532+2+3+335View archive
472017/08/18204+32-34-35-3-5-View archive
482017/03/29204-3+43+34+23+4+View archive
492017/03/04204+4333-33-4+4+View archive
502017/01/27204+4+44-4-3+1+2-4+View archive
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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2018/11/05Kp6 (G2)
Number of spotless days in 2018:190
Last spotless day:2018/11/11

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