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. The Kp-values on this page are the official, finalized Kp-values from the GFZ in Potsdam, Germany. The Ap-index provides a daily average level for geomagnetic activity. The Ap-index is thus a storm-index where long geomagnetic storms have a higher daily Ap-value. This page is updated daily. Times are in UTC.

Ap 00-03h03-06h06-09h09-12h12-15h15-18h18-21h21-00hKp max
12003/10/292045-4988-8-9-9-9View archive
22003/10/301919-7+5+5-57999View archive
32000/07/1516434-5-4+89-99-9View archive
42001/03/311927-9-9-6+788+7+9-View archive
52004/07/271868+8-7+89-8+6+69-View archive
62004/11/101618-8+9-8+7+6+5+4+9-View archive
72003/11/2015014-6+6+8-9-9-89-View archive
82001/11/061429-9-755+7-6+6+9-View archive
92004/11/081409-9-8+753-4+5+9-View archive
102004/11/091196-65677-9-79-View archive
112005/08/241023-3+6+9-7+7-6+4+9-View archive
121998/05/0410169-8+6-64-2+39-View archive
132000/04/07749-66444+4-4-9-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
162003/05/2910944-4-378-8+8+8+View archive
172001/11/241043+5+8+78-7+35-8+View archive
182006/12/15948+8-7-6-6444-8+View archive
192005/05/089165+4-68+8-5+4-8+View archive
202005/05/15876-6-8+8-44558+View archive
212001/04/118532+224-88-8+8+View archive
222000/04/06822-4+3-2+3+7-8+8+8+View archive
232002/05/23783-3-27-8-8+53+8+View archive
242000/09/17565-42+345-5+8+8+View archive
252004/07/2515477+6+8-7+87+7+8View archive
261998/08/27144888-7-7-7-76+8View archive
272000/05/249388-66-5564+8View archive
281999/10/229178-85+5-4+6-3+8View archive
292005/01/21663+22+2+3-7-87+8View archive
302004/11/07502-31-3+35-6+88View archive
311999/09/22503223-54-688View archive
322000/08/1212357+8-8-7+7+6+4-8-View archive
332000/10/051165+7-8-7+8-7-6+58-View archive
342005/09/111016+78-6+75+65-8-View archive
352005/05/309043+6+6+7+8-7-5-8-View archive
362005/01/188476-8-6-5+5+56-8-View archive
372000/09/18708-6-5666338-View archive
381998/11/086668-7+5-43+3-3+8-View archive
392001/10/215733-21+267+8-8-View archive
401999/07/30533-23-3+55+8-6+8-View archive
412000/07/16508-64+5-5-322-8-View archive
422006/12/144732+2255+5+8-8-View archive
432005/01/07400+002-55+48-8-View archive
442003/08/181086-6+77-77+6+67+View archive
452001/10/229675-4-667+777+View archive
462001/03/20745-6-66-7+74+4-7+View archive
472002/04/207077+6-4+565-3-7+View archive
482002/10/01672-3-5-6-7-7+5-7-7+View archive
492003/10/14663+46-54+4+7+7+7+View archive
502002/10/04647+6-65-44-6+4+7+View archive

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