Intense Geomagnetic Storm Events
NOTE: This is a list of intense geomagnetic storms (Dst ≤ -100 nT) and their solar sources. The storms were identified in the geomagnetic field data provided by the WDC for Geomagnetism, Kyoto The list starts from 1996 when the SOHO mission started routinely observing the Sun.
============================================================================================================================================================================================== Geomagnetic Storm Solar Source IP Structure Comments --------------------------- ------------------------------------- --------------------------------------------------------------------- --------------------------------------------------- Date Time Dst Type V_sky Date Time Location Type Shock Date Time ICME Stime ICME Etime V1 V2 minVBz minBz [UT] [nT] [UT] [UT] [UT] [UT] [km/s][km/s] [mV/m] [nT] ============================================================================================================================================================================================== 1996/10/23 05 -105 SIR ---- 1996/10/20 18:28 S10W10 CH ----/--/-- --:-- 10/22 18:15 10/23 05:25 466 707 -7.28 -12.2 1997/04/22 00 -107 CME 87 1997/04/16 07:35 S22E04 8032 1997/04/21 07:09 04/21 11:25 04/23 10:54 363 399 -3.98 -10.1 1997/05/15 13 -115 CME 464 1997/05/12 05:30 N21W08 8038 1997/05/15 02:10 05/15 10:29 05/16 00:14 407 454 -10.94 -25.4 1997/10/11 04 -130 CME 293 1997/10/06 15:28 S35E28 FILA 1997/10/10 16:00 10/10 21:55 10/12 00:05 442 436 -5.74 -13.1 1997/11/07 05 -110 CME 785 1997/11/04 06:10 S14W33 8100 1997/11/06 22:45 11/07 16:00 11/08 15:37 469 445 -7.16 -15.7 1997/11/23 07 -108 CME DG ----/--/-- --:-- N20E05 8108 1997/11/22 10:00 11/22 15:49 11/23 13:12 440 433 -7.29 -14.6 C1.6 flare 1997/11/19 17:00 1998/02/18 01 -100 CME 123 1998/02/14 06:55 S24E23 8156 1998/02/17 04:00 02/17 10:02 02/17 21:35 422 401 -5.92 -14.4 1998/03/10 21 -116 SIR ---- 1998/03/07 20:36 S30E00 CH ----/--/-- --:-- 03/10 02:15 03/10 19:35 378 587 -8.12 -15.4 multiple IP density peaks 1998/05/04 06 -205 CME 938 1998/05/02 14:06 S15W15 8210 1998/05/04 02:12 05/04 11:13 05/05 02:49 810 735 -23.62 -28.4 1998/06/26 05 -101 CME 278 1998/06/22 07:34 S28W35 FILA 1998/06/25 16:17 06/25 18:57 06/26 08:31 428 461 -6.62 -14.3 1998/08/06 12 -138 CME DG ----/--/-- --:-- S25W35 FILA 1998/08/06 07:20 08/07 00:30 08/07 10:00 431 393 -9.14 -22.3 filament eruption 1998/08/02 20:47,followed by SIR 1998/08/27 10 -155 CME DG ----/--/-- --:-- N35E09 8307 1998/08/26 06:00 08/27 06:30 08/28 04:00 471 702 -9.67 -14.3 X1.0 flare 1998/08/24 21:50 1998/09/25 10 -207 CME DG ----/--/-- --:-- N18E09 8340 1998/09/24 23:48 09/25 06:00 09/26 16:00 645 804 -17.03 -22.8 M7.1 flare 1998/09/23 06:40 1998/10/19 16 -112 CME 262 1998/10/15 10:04 N22E10 FILA 1998/10/18 19:36 10/19 04:42 10/19 15:01 340 424 -10.36 -24.7 1998/11/08 07 -149 CME 568 1998/11/05 02:41 S35E09 FILA 1998/11/08 05:00 11/08 07:30 11/08 14:36 632 646 -11.39 -18.0 other CME candidate=1998/11/04 07:54 1998/11/09 18 -142 CME 1118 1998/11/05 20:44 N22W18 8375 1998/11/08 15:36 11/09 04:40 11/10 05:36 533 487 -6.99 -14.6 disturbance between two ICMEs 1998/11/13 22 -131 CME 325 1998/11/09 18:17 N15W05 8378 1998/11/13 01:43 11/13 05:30 11/14 14:36 402 411 -7.29 -18.2 1999/01/14 00 -112 CME DG ----/--/-- --:-- S29E31 8431 1999/01/13 10:30 01/13 15:06 01/14 00:04 399 400 -7.73 -18.6 C3.7 flare 1999/01/08 09:51,followed by SIR 1999/02/18 10 -123 CME DG ----/--/-- --:-- S23W14 8458 1999/02/18 02:50 02/18 10:00 02/19 10:00 614 644 -17.59 -27.4 M3.7 flare 1999/02/16 02:49 1999/09/23 00 -173 CME 604 1999/09/20 06:06 S20W05 FILA 1999/09/22 12:00 09/22 19:40 09/24 00:00 454 554 -14.47 -24.2 1999/10/22 07 -237 CMESIR 144 1999/10/18 00:06 S30E15 ARC 1999/10/21 02:10 10/21 04:30 10/22 05:40 423 434 -15.99 -30.3 followed by SIR 1999/11/13 23 -106 CME DG ----/--/-- --:-- N10E50 8759 1999/11/13 12:53 11/13 23:00 11/14 23:00 456 442 -5.58 -11.9 M1.3 flare 1999/11/10 01:40 2000/02/12 12 -133 CME 910 2000/02/09 19:54 S17W40 8853 2000/02/12 00:00 02/12 11:00 02/13 00:00 580 607 -10.74 -18.0 another CME candidate 2000/02/10 02:30 2000/04/07 01 -288 CME 1188 2000/04/04 16:32 N16W66 8933 2000/04/06 16:49 04/07 06:24 04/08 05:57 580 547 -16.16 -28.5 2000/05/24 09 -147 CME 649 2000/05/22 01:50 N15W26 9004 2000/05/23 17:03 05/24 12:01 05/25 05:55 633 656 -20.42 -32.8 2000/07/16 01 -301 CME 1674 2000/07/14 10:54 N22W07 9077 2000/07/15 14:18 07/15 21:04 07/16 09:44 DG DG DG -60.6 2000/08/11 07 -106 CME ---- ----/--/-- --:-- N14E23 9114 2000/08/10 05:10 08/10 18:00 08/11 19:00 407 428 -5.95 -13.4 arcade; B9.4 flare 2000/08/06 21:22, CME not clear 2000/08/12 10 -235 CME 702 2000/08/09 16:30 N20E12 FILA 2000/08/11 18:51 08/12 06:03 08/13 05:23 559 619 -17.13 -29.0 2000/09/18 00 -201 CME 1215 2000/09/16 05:18 N14W07 9165 2000/09/17 16:00 09/18 00:00 09/19 00:00 730 799 -20.65 -30.6 2000/10/05 14 -181 CME 569 2000/10/02 20:26 S09E00 9176 2000/10/03 00:48 10/03 03:30 10/04 21:37 433 452 -9.36 -18.1 multiple Dst dips due to two ICMEs 2000/10/14 15 -107 CME 506 2000/10/10 00:26 N01W14 9182 2000/10/12 22:36 10/13 16:55 10/14 18:06 438 407 -5.43 -13.7 2000/10/29 04 -127 CME 770 2000/10/25 08:26 N09W63 9199 2000/10/28 09:45 10/28 22:00 10/30 00:00 434 409 -7.75 -18.6 2000/11/06 22 -159 CME 291 2000/11/03 18:26 N02W02 9213 2000/11/06 09:55 11/06 22:52 11/07 18:02 587 585 -8.53 -14.5 2000/11/29 14 -119 CME 980 2000/11/26 17:06 N18W38 9236 2000/11/28 05:35 11/28 14:00 11/29 16:00 572 582 -7.50 -13.7 2001/03/20 14 -149 CME 271 2001/03/16 03:50 N11W09 FILA 2001/03/19 10:32 03/19 20:44 03/21 02:44 378 454 -8.17 -20.9 2001/03/31 09 -387 CME 942 2001/03/29 10:26 N14W12 9393 2001/03/31 01:02 03/31 04:48 03/31 11:32 618 707 -33.18 -48.3 two Dst dips due to two ICMEs 2001/04/12 00 -271 CME 2411 2001/04/10 05:30 S23W09 9415 2001/04/11 15:18 04/12 07:54 04/12 17:54 706 698 -16.27 -23.8 ICME probably longer 2001/04/18 07 -114 CME 1199 2001/04/15 14:06 S20W85 9415 2001/04/18 00:45 04/18 12:11 04/19 18:36 453 483 -11.28 -22.0 Limb source; ICME not clear 2001/04/22 16 -102 CME 392 2001/04/19 12:30 N20W20 FILA 2001/04/21 16:28 04/22 04:32 04/23 01:11 401 379 -4.63 -12.9 2001/08/17 22 -105 CME 618 2001/08/14 16:01 N24W19 FILA 2001/08/17 11:14 08/17 22:56 08/18 14:25 473 501 -8.36 -15.7 2001/09/26 02 -102 CME 2402 2001/09/24 10:30 S12E23 9632 2001/09/25 20:31 09/26 10:30 09/26 16:50 599 555 -12.75 -21.5 2001/10/01 09 -148 CME 846 2001/09/28 08:54 N10E18 9636 2001/09/30 19:31 09/30 23:00 10/02 00:00 555 511 -6.96 -14.0 2001/10/03 15 -166 CME 509 2001/09/29 11:54 N13E03 9636 2001/10/02 13:28 10/03 00:22 10/03 17:11 498 499 -12.20 -23.5 2001/10/21 22 -187 CME 558 2001/10/19 01:27 N16W18 9661 2001/10/21 16:45 10/22 01:00 10/22 22:00 566 688 -15.72 -25.5 2001/10/28 12 -157 CME 1092 2001/10/25 15:26 S16W21 9672 2001/10/28 03:13 10/28 17:45 10/29 10:26 519 463 -8.03 -15.6 2001/11/01 10 -106 CME ---- 2001/10/27 09:06 N06W02 9678 2001/10/31 14:11 10/31 21:17 11/02 05:44 409 378 -5.25 -13.8 C6.3 flare 2001/10/27 08:05, CME too faint to measure 2001/11/06 07 -292 CME 1810 2001/11/04 16:35 N06W18 9684 2001/11/06 01:33 --/-- --:-- --/-- --:-- DG DG -8.47 -19.5 2001/11/24 17 -221 CME 1437 2001/11/22 23:30 S17W36 9704 2001/11/24 05:50 11/24 15:33 11/25 13:18 886 1014 -35.04 -42.9 2002/03/24 10 -100 CME 603 2002/03/20 17:54 S17W20 9871 2002/03/23 11:40 03/24 11:08 03/25 14:54 484 423 -4.77 -10.0 2002/04/18 08 -127 CME 720 2002/04/15 03:50 S15W01 9906 2002/04/17 11:00 04/18 01:32 04/19 08:37 495 519 -15.07 -29.0 2002/04/20 09 -149 CME 1240 2002/04/17 08:26 S14W34 9906 2002/04/19 09:00 04/20 05:31 04/21 16:24 668 647 -9.38 -15.6 2002/05/11 20 -110 CMESIR 614 2002/05/08 13:50 S12W07 9934 2002/05/11 09:51 05/11 13:50 05/11 23:31 434 430 -8.01 -18.5 2002/05/23 18 -109 CME 1557 2002/05/22 03:50 S30W34 FILA 2002/05/23 11:00 05/23 21:29 05/24 11:14 823 815 -28.30 -37.1 2002/08/02 06 -102 CME 222 2002/07/29 12:07 S10W10 10039 2002/08/01 23:05 08/02 07:12 08/02 20:58 462 516 -7.92 -15.9 2002/08/21 07 -106 CME 682 2002/08/18 21:54 S12W19 10069 2002/08/20 14:17 08/20 14:49 08/21 08:10 484 473 -4.23 -9.3 2002/09/04 06 -109 SIR ---- 2002/08/31 17:24 S15W10 CH* ----/--/-- --:-- 09/03 10:45 09/04 07:40 371 483 -7.36 -19.8 multiple IP density peaks 2002/09/08 01 -181 CME 1748 2002/09/05 16:54 N09E28 10102 2002/09/07 16:46 09/07 20:44 09/08 17:03 574 532 -14.49 -25.9 2002/10/01 17 -176 CME ---- 2002/09/26 00:54 N26E14 10129 2002/09/30 08:15 09/30 22:13 10/01 20:20 343 374 -7.18 -16.8 CME too faint to measure 2002/09/26 00:54 2002/10/04 09 -146 CME 307 2002/09/30 01:31 S12W16 FILA 2002/10/02 23:04 10/03 07:49 10/04 19:12 509 478 -4.76 -12.0 2002/10/07 08 -115 SIR ---- 2002/10/05 01:24 S10E10 CH ----/--/-- --:-- 10/07 11:45 10/08 08:10 404 529 -3.32 -9.0 2002/10/14 14 -100 SIR ---- 2002/10/11 02:37 N25E05 CH ----/--/-- --:-- 10/14 11:10 10/15 00:15 331 445 -5.72 -16.3 2002/11/21 11 -128 SIR ---- 2002/11/19 10:01 S05W10 CH* ----/--/-- --:-- 11/21 02:45 11/21 13:55 475 803 -9.82 -18.2 2003/05/30 00 -144 CME 964 2003/05/27 23:50 S07W17 10365 2003/05/29 19:12 05/30 02:12 05/30 16:36 775 682 -22.75 -29.4 merged with 2003/05/28 00:50 CME 2003/06/18 10 -141 CME 875 2003/06/14 01:54 N29W10 FILA 2003/06/17 11:52 06/17 19:33 06/18 05:06 501 462 -9.56 -18.6 2003/07/12 06 -105 SIR ---- 2003/07/09 07:59 N05W15 CH* ----/--/-- --:-- 07/11 14:05 07/12 01:55 372 632 -9.85 -16.9 2003/08/18 16 -148 CME 378 2003/08/14 20:06 S10E02 10421 2003/08/17 14:29 08/18 02:27 08/19 04:09 506 497 -8.67 -17.8 2003/10/30 01 -353 CME 2459 2003/10/28 11:30 S20E02 10486 2003/10/29 06:00 10/29 07:55 10/30 03:49 DG DG DG DG 2003/10/30 23 -383 CME 2029 2003/10/29 20:54 S19W09 10486 2003/10/30 16:20 10/31 01:41 10/31 12:52 DG DG DG DG 2003/11/20 21 -422 CME 1660 2003/11/18 08:50 N00E18 10501 2003/11/20 08:00 11/20 11:25 11/21 04:45 723 720 -28.33 -47.0 2004/01/22 14 -130 CME 965 2004/01/20 00:06 S13W09 10540 2004/01/22 01:32 01/22 13:48 01/23 13:45 654 610 -12.76 -19.7 2004/04/04 00 -117 CME DG ----/--/-- --:-- N12W07 10582 2004/04/03 10:00 04/04 01:32 04/05 14:31 452 472 -5.54 -11.2 C3.4 flare 2004/03/31 10:35 2004/07/25 20 -130 CME 899 2004/07/22 08:30 N04E10 10652 2004/07/24 05:31 07/24 09:16 07/25 15:16 DG 595 -13.07 -23.8 2004/07/27 14 -170 CME 1333 2004/07/25 14:54 N08W33 10652 2004/07/26 22:57 07/27 02:05 07/28 15:09 960 1060 -18.05 -20.0 2004/08/30 23 -129 CMESIR 184 2004/08/26 12:30 S09W34 10664 2004/08/29 10:15 08/29 19:33 08/30 20:00 438 422 -6.39 -14.9 2004/11/08 07 -374 CME 1055 2004/11/04 23:30 N08E18 10696 2004/11/07 18:30 11/08 04:41 11/08 17:28 653 631 -33.01 -48.3 2004/11/10 11 -263 CME 1759 2004/11/07 16:54 N09W17 10696 2004/11/09 18:56 11/09 20:46 11/10 17:15 814 814 -21.85 -29.1 2005/01/18 09 -103 CME 2861 2005/01/15 23:06 N14W08 10720 2005/01/17 08:28 --/-- --:-- --/-- --:-- 684 ---- -11.19 -21.0 2005/05/08 19 -110 SIR ---- 2005/05/06 12:39 N10E00 CH ----/--/-- --:-- 05/08 18:30 05/08 18:50 708 769 -10.98 -13.2 2005/05/15 09 -247 CME 1689 2005/05/13 17:12 N12E11 10759 2005/05/15 02:50 05/15 09:02 05/15 20:36 DG 967 -42.26 -46.9 2005/05/30 14 -113 CME 586 2005/05/26 15:06 S11E19 10767 2005/05/29 10:03 05/29 11:15 05/30 24:00 495 497 -7.87 -16.5 2005/06/12 23 -103 CME 377 2005/06/09 14:36 S15W68 10772 2005/06/12 08:06 06/12 16:56 06/13 12:10 382 468 -8.96 -17.8 2005/08/24 12 -184 CME 2378 2005/08/22 17:30 S13W65 10798 2005/08/24 06:15 --/-- --:-- --/-- --:-- 543 ---- -31.57 -51.1 2005/08/31 20 -122 SIR ---- 2005/08/28 15:14 S10E00 CH ----/--/-- --:-- 08/31 12:55 09/01 01:45 384 505 -7.50 -19.0 2005/09/11 11 -139 CME 2257 2005/09/09 19:48 S12E67 10808 2005/09/11 01:13 09/11 10:54 09/12 06:16 1090 980 -12.21 -11.2 2006/12/15 08 -162 CME 1774 2006/12/13 02:54 S06W23 10930 2006/12/14 13:57 12/14 22:00 12/15 13:00 925 879 -14.70 -17.4 2011/08/06 04 -115 CME 1315 2011/08/04 04:12 N19W36 11261 2011/08/05 18:02 --/-- --:-- --/-- --:-- 477 ---- -13.19 -21.5 2011/09/26 22 -114 CME 1915 2011/09/24 12:48 N10E56 11302 2011/09/26 12:44 --/-- --:-- --/-- --:-- 497 ---- -17.02 -27.3 2011/10/25 02 -147 CME 593 2011/10/22 01:25 N35W40 FILA 2011/10/24 18:31 10/25 02:00 10/25 13:27 496 507 -11.18 -20.9 2012/03/09 09 -145 CME 1825 2012/03/07 01:30 N15E26 11429 2012/03/08 10:53 03/08 20:58 03/10 07:33 725 637 -12.34 -18.0 2012/04/24 05 -120 CME 540 2012/04/19 15:12 S25E46 FILA 2012/04/23 03:34 04/23 16:13 04/24 02:15 389 393 -5.89 -15.2 2012/07/15 17 -139 CME 885 2012/07/12 16:48 S15W01 11520 2012/07/14 18:09 07/15 08:10 07/16 14:00 DG 615 -11.34 -18.4 2012/10/01 05 -122 CME 947 2012/09/28 00:12 N06W34 11577 2012/09/30 23:05 10/01 00:49 10/01 10:55 402 393 -7.65 -19.4 2012/10/09 09 -109 CME 612 2012/10/05 02:48 S23W31 ARC 2012/10/08 05:34 10/08 18:12 10/09 14:31 399 441 -6.26 -15.9 2012/11/14 08 -108 CME 559 2012/11/09 15:12 S18E16 11608 2012/11/12 23:11 11/13 08:58 11/14 09:29 360 445 -6.79 -18.8 2013/03/17 21 -132 CME 1063 2013/03/15 07:12 N11E12 11692 2013/03/17 06:00 03/17 15:00 03/18 01:00 679 672 -11.82 -17.4 2013/06/01 09 -124 SIR ---- 2013/05/30 00:27 N05W00 CH ----/--/-- --:-- 06/01 00:35 06/01 12:25 399 695 -8.33 -20.7 2013/06/29 07 -102 CME 174 2013/06/23 22:36 N17W00 ARC 2013/06/27 14:35 06/28 02:00 06/29 15:00 463 421 -4.68 -12.1 2014/02/19 09 -119 CME 634 2014/02/16 10:00 S11E01 11977 2014/02/19 04:10 02/19 15:24 02/20 02:55 472 511 -6.92 -14.9 2015/01/07 12 -107 CME 163 2015/01/03 03:12 S30E14 ARC 2015/01/07 06:00 01/07 08:29 01/07 21:00 483 474 -9.73 -20.3 2015/03/17 23 -234 CME 719 2015/03/15 01:48 S22W25 12297 2015/03/17 04:51 03/17 14:00 03/18 00:00 497 570 -15.88 -27.1 2015/06/23 05 -198 CME 1366 2015/06/21 02:36 N12E13 12371 2015/06/22 18:49 06/23 01:49 06/23 05:51 703 731 -26.41 -38.8 2015/09/09 13 -105 CME 337 2015/09/04 23:12 S14E11 FILA 2015/09/07 13:00 09/08 00:00 09/09 12:00 625 557 -3.69 -9.0 2015/10/07 23 -130 SIR ---- 2015/10/05 18:55 S10W10 CH ----/--/-- --:-- 10/07 13:00 10/07 21:00 423 832 -11.26 -18.7 2015/12/20 23 -155 CME 579 2015/12/16 09:36 S13W04 12468 2015/12/19 16:07 12/20 13:47 12/21 18:42 461 391 -7.85 -18.5 2016/01/01 01 -116 CME 1212 2015/12/28 12:12 S23W11 12473 2015/12/31 01:00 12/31 18:30 01/01 06:00 416 451 -7.47 -16.4 2016/10/13 18 -110 CME 179 2016/10/09 02:24 S02E39 ARC 2016/10/12 22:21 10/13 06:25 10/14 14:43 403 434 -8.00 -19.9 2017/05/28 08 -146 CME 259 2017/05/23 05:00 S03W04 FILA 2017/05/27 15:55 05/28 00:00 05/29 05:00 359 389 -8.87 -22.4 2017/09/08 02 -148 CME 1571 2017/09/06 12:24 S08W33 12673 2017/09/07 23:10 09/08 11:41 09/08 18:00 616 784 -20.69 -31.5 2018/08/26 08 -176 CME 126 2018/08/20 21:24 N21W08 FILA 2018/08/25 02:30 08/25 13:15 08/26 09:18 424 404 -6.69 -15.8 2021/11/04 14 -105 CME 1473 2021/11/02 02:48 N19E04 12891 2021/11/03 20:20 11/04 07:20 11/05 04:02 735 704 -11.76 -16.8 2023/02/27 13 -132 CME 1336 2023/02/24 20:36 N28W28 13229 2023/02/26 19:31 02/27 15:31 02/27 20:22 566 841 -12.15 -15.5 2023/03/24 03 -163 CME 135 2023/03/19 22:52 S10W07 ARC 2023/03/23 11:37 03/23 14:40 03/24 06:37 517 494 -8.82 -18.5 2023/04/24 06 -213 CME 1284 2023/04/21 18:12 S23W10 13283 2023/04/23 17:38 04/24 01:54 04/24 21:08 522 643 -18.04 -29.5 2023/11/05 20 -163 CME 693 2023/11/03 05:24 N30W31 FILA 2023/11/05 09:15 11/05 11:53 11/05 23:54 406 398 -13.88 -28.7 2023/12/01 14 -108 CME 741 2023/11/28 20:12 S16W00 13502 2023/12/01 09:52 12/01 20:38 12/03 02:41 532 523 -14.53 -27.1 2024/03/03 20 -112 CME 705 2024/02/28 09:24 S16E31 FILA 2024/03/03 10:32 03/04 01:17 03/05 00:40 347 354 -5.04 -15.0 2024/03/24 21 -128 CME 1470 2024/03/23 01:25 N27E08 13614 2024/03/24 14:34 03/24 18:26 03/25 10:19 780 821 -16.94 -21.8 2024/04/19 20 -117 CMESIR 217 2024/04/16 20:48 S40E27 FILA 2024/04/19 05:30 04/19 12:44 04/20 00:56 369 401 -7.47 -16.7 2024/05/11 03 -412 CME 1280 2024/05/09 09:24 S20W26 13664 2024/05/10 17:08 05/10 19:48 05/11 18:38 608 711 -40.68 -55.6 ICME probably involves multiple ejecta 2024/06/28 13 -107 CME ---- ----/--/-- --:-- N19W08 ARC 2024/06/27 12:30 06/28 01:06 06/28 10:00 341 323 -11.14 -27.5 arcade 2024/06/24 01:45, CME not measurable 2024/08/04 18 -100 CMESIR ---- ----/--/-- --:-- S10W05 13765 2024/08/04 13:44 08/04 17:16 08/04 22:31 398 375 -6.04 -15.6 EUV eject 2024/07/29 14:06, CME not measurable 2024/08/12 17 -188 CME 789 2024/08/08 19:48 S03W23 13777 2024/08/11 19:10 08/12 08:37 08/13 04:34 520 511 -10.14 -20.0 2024/09/12 15 -121 CME 643 2024/09/10 00:24 N16E09 13814 2024/09/12 03:45 09/12 23:47 09/13 18:01 431 534 -8.33 -16.2 2024/09/17 09 -121 CME 2366 2024/09/14 15:36 S15E56 13825 2024/09/16 23:35 --/-- --:-- --/-- --:-- 535 ---- -10.70 -18.3 2024/10/08 08 -148 CME 497 2024/10/04 05:12 S16W17 13842 2024/10/07 01:21 10/07 11:54 10/08 12:36 480 448 -6.26 -15.1 merged with 2024/10/03 20:09 CME 2024/10/11 02 -333 CME 1435 2024/10/09 02:12 N13W08 13848 2024/10/10 15:15 10/10 22:10 10/11 09:57 805 692 -32.48 -47.5 2024/11/09 13 -101 CME 360 2024/11/05 00:00 S10E33 13883 2024/11/08 11:01 11/08 12:36 11/09 12:27 374 385 -5.59 -13.4 2025/01/01 16 -210 CME 764 2024/12/29 06:12 S17E33 13939 2024/12/31 16:35 01/01 08:58 01/02 08:21 ???? 513 -12.03 -22.5 2025/04/16 18 -138 CME 529 2025/04/13 06:36 S22W07 FILA 2025/04/15 17:23 04/16 00:22 04/17 12:56 ???? 601 -8.25 -16.6 ============================================================================================================================================================================================== DST value can be final, provisional, or realtime. Updates can be found in the WDC for Geomagnetism, Kyoto Column 1-2 : DST minimum date and time [UT]. Column 3 : Minimum value of Dst [nT]. Column 4 : Type of geomagnetic storm Column 5-7 : Solar source information: Sky-plane CME speed [km/s] in LASCO FOV, date, and time [UT]. The CME date is as listed in the SOHO LASCO CME CATALOG; : for SIRs, the estimated date and time when the fastest solar wind in the SIR left the Sun, estimated by assuming ballistic propagation. Column 8 : Solar source location in Stonyhurst heliographic coordinates. It links to a three-panel figure with (a) EIT 195/284 Å, AIA 193/211 Å, Yohkoh Soft X-ray Telescope (SXT), : or H-alpha images, (b) MDI or HMI magnetogram or Kitt Peak spectromagnetograph images, and (c) magnetogram image with ≥ 30 G and ≤ 30 G areas shown in blue and red, : respectively ; the gray areas have low magnetic field strength (|B| < 30 G). For CMEs, the source is marked by a yellow circle. : For SIRs, the coronal hole is outlined by a yellow contour marking the 1/2 (EIT/284 Å) or 1/3 (AIA/211 Å) of the median EUV intensity of the Sun. Column 9 : Solar source type: active region (NOAA number), eruptive filament region (FILA), post eruption arcade (ARC, from a non-spot region), or coronal hole (CH). : CH* denotes cases in which the CH contour intensity is slightly modified to exclude nearby filament channels. Column 10-11: Shock or disturbance date and time [UT] ahead of interplanetary (IP) CMEs; blank for SIRs. Column 12-13: Start date and time [UT] of the IP signature (magnetic cloud (MC), non-cloud ejecta (EJ), SIR, or mixed events: MC-SIR or EJ-SIR). : For SIRs, the date and time [UT] mark the time maximum solar wind density at 1 au. The signature type is noted on the solar wind plots linked to these entries. Column 14-15: End date and time [UT] of the IP signature. For SIRs, the date and time mark the time of maximum solar wind speed at 1 au. Column 16 : V1 - Solar wind speed [km/s] at shock arrival; for SIRs, it is the solar wind speed [km/s] at the density peak. Column 17 : V2 - Solar wind speed [km/s] at ICME start time in column 12 and 13. For SIRs, the maximum solar wind speed [km/s] at 1 au during the event interval (column 13 to column 15). Column 18 : Minimum value of IP electric field [mV/m] (solar wind speed x magnetic field's Z component, Bz) during the event interval. Column 19 : Minimum value of Bz [nT] during the event interval. Column 20 : Comment