Space Weather Events
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Research information from NASA DONKI, not an operational space weather warning service.
Showing 81–100 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▼, sorted descending; sort Linked events, A to Z | Instruments↕, sortable; sort Instruments, A to Z | Summary↕, sortable; sort Summary, A to Z |
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| Coronal mass ejection — 2026-10-02 00:53 UTC | Coronal mass ejection | — | 255 km/s | 1 | — | STEREO A: SECCHI/COR2, SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | CME faintly visible to the NE in STEREO A COR2 and the NW in SOHO LASCO C2/C3 and GOES CCOR-1. The source is likely a gradual eruption with moving field lines best seen in SDO AIA 193 starting around 2026-10-01T17:43Z. Post-eruption arcades are also visible, and best seen after a data gap in STEREO A EUV 195 imagery. The data gap is from 2026-10-01T14:35Z to 2026-10-02T00:55Z. | |
| 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 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. | |
| Coronal mass ejection — 2026-10-05 21:12 UTC | Coronal mass ejection | — | 266 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1 | This CME is visible to the northwest in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2 imagery. The source is likely related to a far-sided filament eruption which begins to lift-off around 2026-10-05T19:00Z as seen in SDO AIA 131/171/193/304 and GOES SUVI 131/171/195/284/304 imagery. | |
| Coronal mass ejection — 2026-10-06 00:00 UTC | Coronal mass ejection | — | 325 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | This CME is visible to the west/southwest in SOHO LASCO C2/C3 and GOES CCOR-1 imagery. This event is not seen in STEREO A COR2 imagery likely due to a data gap from 2026-10-05T14:38Z to 2026-10-06T01:23Z. The source is a small eruption visible from Active Region 14546 (S19W88) as seen in SDO AIA 131/171/193/304 and GOES SUVI 131/171/195/284/304 imagery starting around 2026-10-05T23:15Z. A subsequent opening of field lines visible over the southwest limb in SDO AIA 171/193 and GOES SUVI 171/195/284 imagery at this time as well. | |
| Coronal mass ejection — 2026-10-06 13:08 UTC | Coronal mass ejection | — | 438 km/s | 1 | — | STEREO A: SECCHI/COR2, SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Faint CME first seen to the NNE by STEREO A COR2 beginning at 2026-10-06T13:08Z, as well as by SOHO LASCO C2/C3 and GOES CCOR-1 in later frames. The source of this CME is faint field line opening seen originating from approx. E10N40 beginning at approx. 2026-10-06T12:22Z as seen in SDO AIA 171 and GOES SUVI 284. | |
| Coronal mass ejection — 2026-10-07 13:53 UTC | Coronal mass ejection | — | 310 km/s | 1 | — | STEREO A: SECCHI/COR2, SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | CME first seen to the NE in STEREO A COR2 starting at 2026-10-07T13:53Z. So far it is only visible in COR2A. The source of this CME is a C7.9 class flare from AR 14549 (N10W04) peaking at 2026-10-07T13:17Z best seen in SDO AIA 171. Some dimming and an EUVI wave associated with the eruption can be seen in SDO AIA 193. Some deflection is evident in the measurement of this CME, likely due to it close proximity to a coronal hole to the SE of AR 14549. | |
| Coronal mass ejection — 2026-10-08 16:12 UTC | Coronal mass ejection | — | 449 km/s | 1 | — | SOHO: LASCO/C2 | CME faintly seen to the east in SOHO LASCO C2/C3 and GOES CCOR-1. The CME may potentially be visible to the west in STEREO A COR2. The potential source for this CME may be beyond the east limb, as moving field lines are seen in SDO AIA 193 starting around 2026-10-08T09:21Z. Some ejecta of material can also be seen beyond the east limb in GOES SUVI 304 as well. | |
| Coronal mass ejection — 2026-10-08 18:38 UTC | Coronal mass ejection | — | 868 km/s | 1 | — | STEREO A: SECCHI/COR2 | Faint CME observed to the E only in STEREO A COR2 Science Data, as a real-time gap in STEREO A COR2 beacon data spanning 2026-10-08T18:53Z to 2026-10-09T17:53Z obscured real-time observations of this CME. CME leading edge not observed in SOHO LASCO C2/C3 or GOES CCOR-1. Partial overlap with CMEs 2026-10-08T16:24Z and CME 2026-10-08T16:53Z. The source is an on-disk filament eruption in the vicinity of AR 14548, starting around 2026-10-08T17:13Z, with the filament spanning a curved arc from S08E15 to S21E24 to S15E05 before liftoff in SDO AIA 304. Eruption observed as filament ejecta, brightening, and double-ribbon flare in SDO AIA 304, and as field line movement, dimming, and brightening/post-eruptive arcades in SDO AIA 171/193/211. | |
| Coronal mass ejection — 2026-10-08 20:12 UTC | Coronal mass ejection | — | 453 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | CME visible to the NW in SOHO LASCO C2/C3 and GOES CCOR-1, directly following CME: 2026-10-08T16:53Z in the field of view. The CME is not visible in STEREO A COR2, and a data gap starts at 2026-10-08T18:53Z. The potential source is unclear, with several potential source candidates on the disk. The most likely candidate is a possible eruption from AR 14547 (N15W85) seen starting around 2026-10-08T16:19Z as dimming and moving field lines. The eruption is also faintly visible from the point of view of STEREO A EUV 195 imagery. Another candidate source is a filament eruption starting around 2026-10-08T18:09Z centered around S15E10 as seen in SDO AIA 193/304, but this is not a likely source candidate due to the location of the eruption. This eruption's proximity to a coronal hole may result in some deflection of the eruption. The third possible eruption candidate is activity from AR 14549 (N10W25), but it is not clear if this is a separate eruption from the one that produced CME: 2026-10-08T16:53Z. | |
| Coronal mass ejection — 2026-10-09 00:45 UTC | Coronal mass ejection | — | 293 km/s | 1 | — | GOES: CCOR-1 | CME faintly seen to the east in GOES CCOR-1 imagery. There is a data gap in SOHO LASCO C2/C3 imagery starting at 2026-10-09T00:48Z and a data gap starting in STEREO A COR2 at 2026-10-09T00:53Z. The source is likely beyond the E limb as seen in available EUV imagery, as slow moving field lines are visible on the E limb in SDO AIA 193 and GOES SUVI 284 imagery starting as early as 2026-10-08T18:30Z. | |
| Coronal mass ejection — 2026-10-09 07:15 UTC | Coronal mass ejection | — | 391 km/s | 1 | — | GOES: CCOR-1 | CME seen to the NW in GOES CCOR-1 imagery. There is a data gap in SOHO LASCO C2/C3 and STEREO A COR2 at the time of this CME. The potential source is unclear, but is likely an eruption from AR 14547 (approximately N15W90) starting around 2026-10-09T06:30Z, best seen as moving/opening field lines in SDO AIA 193 and GOES SUVI 284 imagery. |
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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, 03:58 EDT.
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