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Top 50 geomagnetic storms of 1977

On this page you will find an overview of the strongest geomagnetic storms of 1977 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
11977/10/28-159nT477+
21977/10/27-133nT627-
31977/12/02-124nT697
41977/12/11-112nT385+
51977/04/06-105nT497
61977/12/03-104nT93+
71977/05/02-98nT666+
81977/10/19-96nT286
91977/04/07-95nT487-
101977/01/30-95nT305-
111977/07/29-94nT617-
121977/09/22-92nT637-
131977/04/19-91nT486+
141977/11/26-87nT195+
151977/09/20-85nT446-
161977/11/25-85nT155
171977/09/27-84nT246-
181977/10/18-84nT225
191977/09/21-81nT647+
201977/05/03-77nT155-
211977/09/19-76nT426
221977/12/05-72nT185-
231977/12/12-71nT216-
241977/10/12-71nT285
251977/09/23-70nT215
261977/01/31-69nT195+
271977/12/17-67nT125
281977/10/22-67nT225
291977/11/14-65nT426-
301977/04/20-62nT285
311977/08/05-61nT406
321977/11/15-60nT256-
331977/05/12-59nT196-
341977/12/04-59nT145-
351977/09/13-58nT285+
361977/04/09-57nT224+
371977/07/30-57nT174+
381977/09/24-56nT124-
391977/04/08-55nT275-
401977/10/29-54nT94-
411977/09/26-53nT185-
421977/10/20-52nT73
431977/10/15-50nT195-
441977/04/21-50nT124-
451977/09/28-50nT94-
461977/11/13-49nT265
471977/09/25-49nT103
481977/11/16-48nT144-
491977/08/06-48nT214+
501977/05/11-47nT245+
© 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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