Space Weather Events
Last checked 55 minutes ago.
Research information from NASA DONKI, not an operational space weather warning service.
Showing 21–40 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 — 2026-10-12 19:36 UTC | Coronal mass ejection | — | 365 km/s | 1 | — | SOHO: LASCO/C2, GOES: CCOR-1 | Narrow CME first seen to the SW by SOHO LASCO C2 beginning at 2026-10-12T19:36Z, as well as by GOES CCOR-1 in later frames. This CME is not visible in STEREO A COR2 due to a data gap which began at 2026-10-12T18:58Z. The source of this event is rising field line loops seen originating from beyond the SW limb in SDO AIA 171 beginning at approx. 2026-10-12T18:18Z. | |
| Coronal mass ejection — 2026-09-28 04:24 UTC | Coronal mass ejection | — | 430 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1 | Narrow CME first seen to the SW by SOHO LASCO C2 beginning at 2026-09-28T04:24Z, as well as by SOHO LASCO C3, STEREO A COR2 and GOES CCOR-1 in later frames. The source of this event is faint field line opening seen along the SW limb (approx. W140) in STEREO A EUVI 195 beginning at approx. 2026-09-28T03:35Z. | |
| Coronal mass ejection — 2026-09-28 01:26 UTC | Coronal mass ejection | — | 435 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1 | Narrow CME first seen to the SW by SOHO LASCO C2 beginning at 2026-09-28T01:26Z as well as by SOHO LASCO C3, STEREO A COR2 and GOES CCOR-1 in later frames. The source of this event is an eruption seen along the SW limb in STEREO A EUVI 304 beginning at approx. 2026-09-28T01:00Z. | |
| Coronal mass ejection — 2026-09-27 09:48 UTC | Coronal mass ejection | — | 352 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1 | Narrow CME first seen to the NNE by SOHO LASCO C2 beginning at 2026-09-27T09:48Z, as well as by SOHO LASCO C3, GOES CCOR-1 and to the North by STEREO A COR2. There is no clear source seen for this event as it is likely far sided. | |
| Coronal mass ejection — 2026-10-10 22:00 UTC | Coronal mass ejection | — | 351 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Minor faint, narrow CME/outflow seen to the west in SOHO LASCO C2/C3 and GOES CCOR-1 and covered by the data gap in STEREO A. No clear source has been found for this CME. | |
| Coronal mass ejection — 2026-10-06 06:23 UTC | Coronal mass ejection | — | 573 km/s | 2 | 2026-10-06T05:38:00-FLR-001, 2026-10-10T01:56:00-IPS-001 | STEREO A: SECCHI/COR2, SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Full halo CME in SOHO LASCO C2/C3 and GOES CCOR-1, first seen to the NE in STEREO A COR2 (shock fully to the E, wide). The source is AR 14549, associated with an M1.4 flare (N10E12) peaking at 2026-10-06T06:10Z, observed in SDO AIA 131. Also observed as an EUV wave, field line movement, brightening, filament ejecta, and small post-eruptive arcade in SDO AIA 131/171/193/304. Additionally observed on the NE limb of STEREO A EUVI 195 as field line movement and EUV wave, and EUVI 304 as filament ejecta. | |
| Solar flare — 2026-10-04 06:13 UTC (B3.2) | Solar flare | B3.2 | — | — | 2026-10-04T07:24:00-CME-001 | GOES-P: EXIS 1.0-8.0 | First in pair of eruptive flares from AR 14546, followed immediately by a B9.3 class flare peaking at 2026-10-04T06:30Z. 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. | |
| 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 — 2026-09-19 16:38 UTC | Coronal mass ejection | — | 729 km/s | 1 | — | SOHO: LASCO/C2, STEREO A: SECCHI/COR2, GOES: CCOR-1 | Faint, narrow CME seen to the SW in SOHO LASCO C2 and STEREO A COR2 and very faintly seen in a couple of frames of GOES CCOR-1 coronagraph imagery. The CME is not seen in SOHO LASCO C3. Its source is likely seen in STEREO A EUV 304 imagery as a large ejecta off the W limb after 2026-09-19T15Z and not seen in any other EUV imagery. The ejecta is not clearly visible, and it's exact location/longitude is unclear, but it seems to be close to the limb (which would be ~159 deg). | |
| Coronal mass ejection — 2026-09-19 18:48 UTC | Coronal mass ejection | — | 321 km/s | 1 | 2026-09-19T17:57:00-FLR-001 | SOHO: LASCO/C2 | Faint, minor CME with an unclear front seen to the E-NE in SOHO LASCO C2. Not seen in other coronagraphs. Its source is the long duration C3.3 class flare from unnumbered AR rotating onto disk (N14E90) peaking at 2026-09-19T18:17Z. There is also an associated opening of field lines on/behind the E limb seen in SDO AIA 193 and a minor prominence/ejecta seen in SDO AIA 304/171 starting after 2026-09-19T18:10Z. The initial front is followed by a series of outflows. | |
| 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 — 2026-09-26 15:24 UTC | Coronal mass ejection | — | 449 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Faint minor CME with a pointy front seen to the NE in SOHO LASCO C2/C3 and GOES CCOR-1 but not seen in STEREO A COR2 coronagraph. | |
| Coronal mass ejection — 2026-09-25 15:12 UTC | Coronal mass ejection | — | 524 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Faint loop front in the wake of 2026-09-25T11:09Z CME, overlapping with outflow from this earlier far-sided CME. The front is faintly seen in SOHO LASCO C2/C3 and GOES CCOR-1 to the NE. There is a super faint, possibly corresponding front even more faintly seen in STEREO A COR2 white light imagery to the NW but it is practically not seen in running difference imagery and seems much wider than the front seen in LASCO and CCOR-1. No source has been found in available EUV imagery for this event, so it is likely far sided. | |
| Coronal mass ejection — 2026-10-09 14:36 UTC | Coronal mass ejection | — | 315 km/s | 1 | 2026-10-09T13:55:00-FLR-001 | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Faint CME with a loop front seen to the NW in the early SOHO LASCO C2 imagery, also seen faintly in C3 and GOES CCOR-1. It is fully covered by long data gap in STEREO A COR2 coronagraph. The source is the occulted (or on-limb) M1.3 flare likely from Active Region 14547 (N15W94), now decayed to a plage, which had just rotated off the visible disk before the flare. Other coronal signatures include a small ejecta seen in SDO AIA 304 at the time of the flare and movement/opening of field lines seen to the NW behind the limb in SDO AIA 171/193 and GOES SUVI 304/284. | |
| Coronal mass ejection — 2026-09-25 17:45 UTC | Coronal mass ejection | — | 462 km/s | 1 | — | GOES: CCOR-1, SOHO: LASCO/C3 | Faint CME that looks to consist of two loops moving together as one. It is seen faintly to the NE in GOES CCOR-1 and SOHO LASCO C3 difference imagery, moving in the footsteps of 2026-09-25T11:09Z CME. No coronal signatures have been found for this event, so it is likely far-sided. | |
| Coronal mass ejection — 2026-09-28 16:18 UTC | Coronal mass ejection | — | 581 km/s | 1 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, GOES: CCOR-1 | Faint CME seen to the SE by SOHO LASCO C2 beginning at 2026-09-28T16:18Z, as well as by SOHO LASCO C3 and GOES CCOR-1 in later frames. This CME is not clearly seen in STEREO A COR2 as it is likely obscured by the pylon. The source of this CME is faint field line opening seen originating from beyond the SW limb in SDO AIA 171 beginning at approx. 2026-09-28T15:45Z. | |
| 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 — 2026-09-20 12:23 UTC | Coronal mass ejection | — | 427 km/s | 1 | — | STEREO A: SECCHI/COR2 | Faint CME observed to the W only in STEREO A COR2. No distinct source is observed in available EUV imagery. | |
| 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 — 2026-09-24 09:23 UTC | Coronal mass ejection | — | 618 km/s | 1 | — | STEREO A: SECCHI/COR2 | Faint CME observed to the SW only in STEREO A COR2, may be due to faintness or the occulting disk in other coronagraphs. No EUV source is observed for this front. |
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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
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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