Space Weather Events
Last checked 8 minutes ago.
Research information from NASA DONKI, not an operational space weather warning service.
Showing 1–20 of 120 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↕, sortable; sort Instruments, A to Z | Summary▼, sorted descending; sort Summary, A to Z |
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| 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 — 2026-10-10 12:23 UTC | Coronal mass ejection | — | 763 km/s | 1 | — | STEREO A: SECCHI/COR2, SOHO: LASCO/C2 | Very minor faint and narrow CME seen to the NE in STEREO A COR2 coronagraph in early timestamps. Possibly it is the same faint narrow CME that is also seen at the time NE in SOHO LASCO C2 for a few early timestamps and not seen in C3 or GOES C3. No source has been found in EUV imagery for this event. | |
| 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 — 2026-09-15 08:36 UTC | Coronal mass ejection | — | 395 km/s | 1 | — | SOHO: LASCO/C2 | Very faint CME with an unclear front seen to the NE in early images of SOHO LASCO C2 only. It is not seen in SOHO LASCO C3, STEREO A COR2 and GOES CCOR-1, likely because of its faintness. No source for this feature has been found in EUV 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 — 2026-10-12 12:23 UTC | Coronal mass ejection | — | 335 km/s | 1 | — | STEREO A: SECCHI/COR2 | This CME is visible to the west in STEREO A COR2, SOHO LASCO C2/C3, and GOES CCOR-1 imagery. The source is likely related to a filament eruption visible beyond the western limb in STEREO A EUVI 195/304 imagery which lifts-off around 2026-10-12T10:15Z. | |
| Coronal mass ejection — 2026-10-12 10:09 UTC | Coronal mass ejection | — | 351 km/s | 1 | — | STEREO A: SECCHI/COR2, SOHO: LASCO/C2 | This CME is visible to the west in SOHO LASCO C2 and STEREO A COR2 imagery. The source is likely far-sided as there are no source signatures visible on the Earth or STEREO A-facing disk. | |
| Coronal mass ejection — 2026-10-11 23:15 UTC | Coronal mass ejection | — | 457 km/s | 1 | — | GOES: CCOR-1, SOHO: LASCO/C2, SOHO: LASCO/C3 | This CME is visible to the southwest in GOES CCOR-1 and SOHO LASCO C2/C3 imagery. This event is not seen in STEREO A COR2 in real-time due to a data gap starting at 2026-10-11T17:38Z. The source may be related to dimming centered near S20E30 starting around 2026-10-11T22:00Z as seen in SDO AIA 193 and GOES SUVI 195 imagery. | |
| 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 — 2026-10-12 05:09 UTC | Coronal mass ejection | — | 741 km/s | 1 | 2026-10-14T17:28:00-IPS-001 | STEREO A: SECCHI/COR2, SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | This CME is visible to the east in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2 imagery. The source is a filament eruption spanning S12E15 to S20E30 which begins to lift off around 2026-10-12T04:45Z as seen in SDO 131/171/193/304, GOES SUVI 131/171/195/284/304, and STEREO A EUVI 195/304 imagery. Dimming is visible in SDO AIA 193 and GOES SUVI 195 imagery, with post eruptive arcades visible starting around 2026-10-12T05:45Z. | |
| 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 — 2026-09-29 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 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 — 2026-10-11 23:12 UTC | Coronal mass ejection | — | 618 km/s | 1 | 2026-10-14T17:28:00-IPS-001 | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1 | This CME is visible to the east in GOES CCOR-1 and SOHO LASCO C2/C3 imagery. This event is seen in STEREO A COR2, directed towards the east, after it has exceeded the field of view due to a data gap from 2026-10-11T17:38Z to 2026-10-12T01:53Z. The source is a filament eruption spanning S30E30 to S10E05 which begins to lift off around 2026-10-11T22:30Z as seen in SDO 131/171/193/304 and GOES SUVI 131/171/195/284/304 imagery. Dimming is visible in SDO AIA 193 and GOES SUVI 195 imagery, with post eruptive arcades visible starting around 2026-10-11T23:40Z. | |
| Solar flare — 2026-09-19 17:57 UTC (C3.3) | Solar flare | C3.3 | — | — | 2026-09-19T18:48:00-CME-001 | GOES-P: EXIS 1.0-8.0 | The flare was produce by the unnumbered Active Region just behind the limb. This is likely the Active Region that would be numbered AR 14535. | |
| Solar flare — 2026-10-04 06:21 UTC (B9.3) | Solar flare | B9.3 | — | — | 2026-10-04T07:36:00-CME-001 | GOES-P: EXIS 1.0-8.0 | Second in pair of eruptive flares from AR 14546, directly preceeded by a B3.2 class flare peaking at 2026-10-04T06:19Z. These two flares are in close succession, but visually separable in SDO AIA 131 and in their respective field line movements in SDO AIA 171. | |
| Solar flare — 2026-10-09 13:55 UTC (M1.3) | Solar flare | M1.3 | — | — | 2026-10-09T14:36:00-CME-001 | GOES-P: EXIS 1.0-8.0 | Region 14547 decayed to a plage on 2026-10-08 and rotated off of the Earth-facing disk early on 2026-10-09. This flare may be occulted due to its location near the west limb. | |
| Coronal mass ejection — 2026-10-11 09:12 UTC | Coronal mass ejection | — | 374 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1 | Outflow first seen to the NW in SOHO LASCO C2 starting around 2026-10-11T09:12Z. This feature is much easier to see later in its propagation into SOHO LASCO C3, GOES CCOR-1, and STEREO A COR2. The source is most likely outflow following CME: 2026-10-10T16:15Z but may be related to field line movement seen near the NW limb in SDO AIA 193 starting as early as 2026-10-11T05:00Z. | |
| Coronal mass ejection — 2026-09-27 14:48 UTC | Coronal mass ejection | — | 283 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Narrow, faint CME first seen to the NE by SOHO LASCO C2 beginning at 2026-09-27T14:48Z, as well as by SOHO LASCO C3 and GOES CCOR-1 in later frames. This CME is not clearly seen in STEREO A COR2 imagery. There is no clear source seen for this event as it is likely far sided, but some faint field line movement can be seen beyond the NE limb in SDO AIA 171 beginning at approx. 2026-09-27T13:45Z. | |
| Coronal mass ejection — 2026-09-25 11:23 UTC | Coronal mass ejection | — | 745 km/s | 1 | — | STEREO A: SECCHI/COR2 | Narrow CME with a pointy front seen in STEREO A COR2 only. This CME partially overlaps in coronagraphs with the far-sided 2026-09-25T11:09Z CME and its shock. The only potential candidate source is a filament liftoff faintly seen to the south in STEREO A EUV 195 imagery starting 2026-09-25T11Z as a faint dimming and faint post-eruptive arcades centered ~S40W80 or W90. Not really seen in GOES SUVI 304 or STEREO A 304 imagery. |
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NASA DONKI — Space Weather Events
Data: NASA Community Coordinated Modeling Center (CCMC), DONKI; analyses by the Moon to Mars Space Weather Analysis Office. Last successful refresh: 16 Oct 2026, 06:51 EDT.
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