Top 50 geomagnetic storms of 1991

On this page you will find an overview of the strongest geomagnetic storms of 1991 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
11991/11/09-354nT1198+
21991/03/25-298nT1309-
31991/03/24-281nT1619-
41991/11/08-280nT989-
51991/10/29-254nT1288+
61991/06/05-223nT1969-
71991/10/28-196nT988+
81991/11/01-196nT1098+
91991/07/09-194nT1178
101991/11/02-189nT417
111991/07/13-183nT1349-
121991/06/06-172nT497-
131991/08/19-170nT748-
141991/03/26-168nT1148
151991/10/02-164nT676+
161991/07/14-158nT757-
171991/10/01-157nT547+
181991/11/10-144nT224
191991/08/20-143nT678-
201991/06/11-140nT887+
211991/11/22-139nT576+
221991/11/21-135nT657-
231991/06/10-134nT1198-
241991/10/30-132nT346-
251991/11/19-123nT566+
261991/08/02-114nT526+
271991/06/13-114nT1208-
281991/08/21-112nT416
291991/07/10-109nT195
301991/08/30-107nT496+
311991/05/17-105nT356
321991/07/15-104nT124+
331991/10/31-104nT597
341991/06/14-101nT83+
351991/03/27-101nT315-
361991/08/12-99nT647+
371991/04/29-97nT597-
381991/11/18-97nT305
391991/09/10-96nT376+
401991/08/04-95nT446
411991/10/27-94nT506+
421991/06/12-94nT667-
431991/10/21-94nT285
441991/07/17-94nT416-
451991/08/22-92nT487
461991/11/05-92nT276-
471991/11/20-90nT184
481991/08/06-88nT326
491991/09/01-87nT476
501991/08/31-87nT526
© 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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