Space Weather Events
Solar flare — 2026-10-04 06:21 UTC (B9.3)
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.
| Event type | Solar flare |
|---|---|
| Date | |
| Peak (UTC) | |
| End (UTC) | |
| Flare class | B9.3 |
| Source location / observed at | S19W62 |
| CME speed (most accurate analysis) | — |
| Kp index values (as observed) | — |
| CME analyses | — |
| Linked events | 2026-10-04T07:36:00-CME-001 |
| Instruments | GOES-P: EXIS 1.0-8.0 |
Research information from NASA DONKI, not an operational warning. NOAA SWPC is the official US source of space weather forecasts.
Provenance
| Source | NASA DONKI — Space Weather Events |
|---|---|
| Feed | DONKI FLR |
| Provider data as of | not stated |
| First observed here | 12 Oct 2026, 20:02 EDT |
| Last observed here | 12 Oct 2026, 22:18 EDT |
| In latest snapshot | Yes |
| Record identifier | 047da6c6-7729-5fce-974e-b3d40acdb4f6 |
Local observation history
What this site observed; not complete provider history.
- — Added