Space Weather Events
Last checked 12 minutes ago.
Research information from NASA DONKI, not an operational space weather warning service.
Showing 61–80 of 115 records
| Name↕, sortable; sort Name, A to Z | Event type↕, sortable; sort Event type, A to Z | Date↕, sortable; sort Date, earliest first | Flare class↕, sortable; sort Flare class, A to Z | CME speed↕, sortable; sort CME speed (most accurate analysis), lowest first | CME analyses↕, sortable; sort CME analyses, lowest first | Linked events↕, sortable; sort Linked events, A to Z | Instruments▼, sorted descending; sort Instruments, A to Z | Summary↕, sortable; sort Summary, A to Z |
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| Coronal mass ejection — 2026-09-28 21:24 UTC | Coronal mass ejection | — | 386 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2 | Faint CME observed to the NW in SOHO LASCO C2/C3 and GOES CCOR-1, not observed in STEREO A COR2. The source could be field line movement on/just beyond the NW limb, perhaps former AR 14536, in GOES SUVI 284 starting around 2026-09-28T21:46Z, but this field line movement starts just after the CME is first observed in LASCO C2. It may also be outflow following filament eruption CME: 2026-09-28T14:36Z. | |
| Coronal mass ejection — 2026-09-29 04:12 UTC | Coronal mass ejection | — | 655 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | This CME is visible to the east in SOHO LASCO C2/C3 and GOES CCOR-1 imagery for a few early frames before becoming too diffuse to observe. This event is not visible in STEREO A COR2 imagery. The source is likely related to an eruption seen on or slightly beyond the eastern limb in SDO AIA/GOES SUVI 304 imagery starting around 2026-09-29T03:50Z. | |
| Coronal mass ejection — 2026-09-29 07:12 UTC | Coronal mass ejection | — | 958 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | This CME is visible to the east in SOHO LASCO C2/C3 and GOES CCOR-1 imagery for a few early frames before becoming too diffuse to observe. This event is not visible in STEREO A COR2 imagery. The source is likely related to an eruption seen on or slightly beyond the eastern limb in SDO AIA/GOES SUVI 304 imagery starting around 2026-09-29T07:00Z. | |
| Coronal mass ejection — 2026-09-29 18:36 UTC | Coronal mass ejection | — | 511 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2 | Faint CME observed to the N in SOHO LASCO C2/C3 and GOES CCOR-1, not in STEREO A COR2. The source may be on/near the high latitude NE limb, with two instances of field line movement in SDO AIA 171 starting ~2026-09-29T15:54Z and further north ~2026-09-29T17:10Z; more likely the second candidate. | |
| Coronal mass ejection — 2026-09-30 03:12 UTC | Coronal mass ejection | — | 488 km/s | 1 | 2026-09-30T02:30:00-FLR-001, 2026-10-03T01:26:00-IPS-001 | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1 | CME first seen to the West by SOHO LASCO C2 beginning at 2026-09-30T03:12Z, as well as by SOHO LASCO C3, STEREO A COR2 and GOES CCOR-1. The source of this event is a C8.6 flare from Active Region 14535 (N11W48) seen peaking at 2026-09-30T02:46Z. This flare can be seen clearly in SDO AIA 131, along with field line opening, dimming and an EUV wave seen in SDO AIA 171/193/211, GOES SUVI 284 and STEREO A EUVI 195. | |
| Coronal mass ejection — 2026-09-30 11:36 UTC | Coronal mass ejection | — | 365 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Faint CME first seen to the West by SOHO LASCO C2 beginning at 2026-09-30T11:36Z, as well as by SOHO LASCO C3 and GOES CCOR-1 in later frames. This event is not clearly seen in STEREO A COR2 as it is likely obscured by the occulting disk. The source of this CME is a small eruption from the vicinity of former AR 14543 (S08W112) seen beginning at approx. 2026-09-30T10:55Z in STEREO A EUVI 195. | |
| Coronal mass ejection — 2026-10-01 02:36 UTC | Coronal mass ejection | — | 476 km/s | 2 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1 | Faint CME observed to the NE in SOHO LASCO C2/C3, GOES CCOR-1. May be observed to the NE in STEREO A COR2, but difficult to reliably resolve in white light imagery. The source is likely far-sided, only observed as weak field line movement over the NE limb in SDO AIA 171 starting as early as 2026-10-01T00:25Z. | |
| Coronal mass ejection — 2026-10-01 03:12 UTC | Coronal mass ejection | — | 432 km/s | 2 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1 | Faint CME observed to the NW in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2. The source is far-sided, approximately ~N12W120, as observed in STEREO A EUVI 195/304 as brightening starting around 2026-10-01T02:35Z. Also observed in SDO AIA 171/193/304 as filament ejecta and field line movement beyond the NW limb starting around 2026-10-01T02:36Z. | |
| Coronal mass ejection — 2026-10-02 06:48 UTC | Coronal mass ejection | — | 356 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1 | Faint CME seen to the NNE in GOES CCOR-1 and SOHO LASCO C2/C3. The CME is also possibly faintly visible in STEREO A COR2 imagery to the NE. The potential source may be a filament liftoff faintly seen in SDO AIA 304 imagery starting at 2026-10-01T22:01Z around N45E05. No other candidate source eruptions are seen in available EUV imagery. | |
| Coronal mass ejection — 2026-10-02 08:24 UTC | Coronal mass ejection | — | 270 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1 | CME visible to the NW in SOHO LASCO C2/C3 and GOES CCOR-1. The CME overlaps in the field of view with the CME first seen in STEREO A COR2 at 2026-10-02T00:53Z. The CME may potentially be faintly seen to the NNE in STEREO A COR2. The potential source may be AR 14535, located around N11W75, with a small region of brightening and moving field lines best seen in SDO AIA 193 imagery starting at 2026-10-02T05:52Z. | |
| Coronal mass ejection — 2026-10-02 17:36 UTC | Coronal mass ejection | — | 317 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Very faint CME/outflow with a messy, unclear front seen to the NW in SOHO LASCO C2/C3 and GOES CCOR-1 but covered by an extensive data gap in STEREO A COR2. No source was found in EUV imagery for this outflow. | |
| Coronal mass ejection — 2026-10-02 19:48 UTC | Coronal mass ejection | — | 595 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Faint narrow CME with an anvil-like front seen to the NE in SOHO LASCO C2/C3 and GOES CCOR-1 and fully covered by a large data gap in STEREO A COR2. Its source is likely the notable prominence off/behind the east limb that is best seen in SDO AIA 304/171 and GOES SUVI 304/284. In SUVI it this filament is seen deflecting northwardly. | |
| Coronal mass ejection — 2026-10-02 23:36 UTC | Coronal mass ejection | — | 654 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | This CME is visible to the east in SOHO LASCO C2/C3 and GOES CCOR-1 imagery. The source is likely far-sided as there are no source signatures on the Earth-facing disk around the time of this event. | |
| Coronal mass ejection — 2026-10-03 21:24 UTC | Coronal mass ejection | — | 273 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Extremely faint CME/outflow with an unclear front seen to the NE in SOHO LASCO C2 and in early C3 and GOES CCOR-1 difference imagery and covered by a data gap in STEREO A COR2. It is not seen in white light coronagraph imagery. No clear source was found in EUV imagery for this outflow. | |
| Coronal mass ejection — 2026-10-04 07:24 UTC | Coronal mass ejection | — | 336 km/s | 1 | 2026-10-04T06:13:00-FLR-001 | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Faint CME observed to the SW in SOHO LASCO C2, poorly observed in LASCO C3 and GOES CCOR-1, and not in STEREO A COR2; mostly overlapped with following CME: 2026-10-04T07:36Z. The source is likely the first of two paired B-class flares and respective field line movement from AR 14546; this front associated with the B3.2 class flare peaking at 2026-10-04T06:19Z and field line movement in SDO AIA 171. | |
| Coronal mass ejection — 2026-10-04 07:36 UTC | Coronal mass ejection | — | 313 km/s | 1 | 2026-10-04T06:21:00-FLR-001 | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Faint CME observed to the SW in SOHO LASCO C2, poorly observed in LASCO C3 and GOES CCOR-1, and not in STEREO A COR2; mostly overlapped with preceeding CME: 2026-10-04T07:24Z. The source is likely the second of two paired B-class flares and respective field line movement from AR 14546; this front associated with the B9.3 class flare peaking at 2026-10-04T06:30Z and broad field line movement/dimming in SDO AIA 171/193. | |
| Coronal mass ejection — 2026-10-04 17:00 UTC | Coronal mass ejection | — | 289 km/s | 1 | — | SOHO: LASCO/C2 | Filament eruption observed to the SE in SOHO LASCO C2. In real-time the event is slow and not yet observed in other coronagraphs, but will likely be partially obscured by the LASCO C3 and GOES CCOR-1 pylons. The source is a far-sided filament eruption over the SE limb observed in SDO AIA 171/193/304, and GOES SUVI 304, starting around 2026-10-04T15:30Z as filament ejecta and field line movement. It is unclear how far-sided the source is, but being near the limb it is likely within E90-E120. | |
| Coronal mass ejection — 2026-10-05 01:26 UTC | Coronal mass ejection | — | 340 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Faint CME observed to the W in SOHO LASCO C2/C3 and GOES CCOR-1, not observed in STEREO A COR2. The source is AR 14546 starting around 2026-10-05T00:33Z, with brightening and field line movement in SDO AIA 171/193, and some dimming in SDO AIA 193, centered around S21W71. | |
| Coronal mass ejection — 2026-10-05 07:48 UTC | Coronal mass ejection | — | 701 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1 | Wide CME observed to the NE in SOHO LASCO C2/C3 and GOES CCOR-1, and to the NW in STEREO A COR2. The source is a far-sided filament eruption over the NE limb, observed in SDO AIA 171/193/304 as field line movement, EUV wave, and filament ejecta starting around 2026-10-05T07:18Z, although these features are better observed in the wider field-of-view in GOES SUVI 171/193/284/304. Also observed weakly in STEREO A EUVI over its NW limb starting in EUVI 304 as filament ejecta around 2026-10-05T06:45Z and in EUVI 195 as field line movement around 2026-10-05T07:25Z. | |
| Coronal mass ejection — 2026-10-05 11:24 UTC | Coronal mass ejection | — | 629 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1 | Faint CME observed to the SE in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2. The source is in the vicinity of AR 14548 (S11E46), as a weak eruption centered around S17E60 starting around 2026-10-05T08:55Z observed in SDO AIA 171/193 as filament brightening and field line movement without the small filament seen cleanly lifting off the disk. |
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- NASA DONKI — Space Weather Events: DONKI events in the look-back window (30 days by default), re-read every hour; older entries remain from earlier refreshes or an optional backfill.
NASA DONKI — Space Weather Events
Source: Data: NASA Community Coordinated Modeling Center (CCMC), DONKI; analyses by the Moon to Mars Space Weather Analysis Office. Last successful refresh: 14 Oct 2026, 15:02 EDT.
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