Space Weather Events
Last checked 53 minutes ago.
Research information from NASA DONKI, not an operational space weather warning service.
Showing 41–60 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↕, sortable; sort Instruments, A to Z | Summary↕, sortable; sort Summary, A to Z |
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| Coronal mass ejection — 2026-09-28 14:36 UTC | Coronal mass ejection | — | 501 km/s | 2 | — | SOHO: LASCO/C2, SOHO: LASCO/C3, STEREO A: SECCHI/COR2, GOES: CCOR-1 | Bright loop CME first seen to the West by SOHO LASCO C2 beginning at 2026-09-28T14:36Z, as well as by SOHO LASCO C3 and GOES CCOR-1, as well as to the East in STEREO A COR2 in later frames. The source of this event is a very large filament eruption seen stretching from approx. S10W50 to N45W50 (centered at approx. N27W50) with liftoff beginning at approx. 2026-09-28T13:51Z as seen in SDO AIA, STEREO A EUVI and GOES SUVI 304. Post eruptive arcades, dimming and wide field line opening can be seen in SDO AIA 171/193/211, GOES SUVI 284 and STEREO A EUVI 195. | |
| 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 — 2026-09-28 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 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 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. |
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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, 04:59 EDT.
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