Solar Storms at M1.4 Solar Flare
Reported by DONKI 77 days ago.
What the source measured
DONKI reported: M1.4 solar flare detected. Minor HF radio degradation on sunlit side of Earth.
How we know
5 recorded sources include DONKI; independence is not established by this count.
Our own score for this event is 22 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Solar Storms |
| Severity | Medium |
| Calamity Score (ours) | 22 / 100 |
| Legacy data-support index | 0.60/1 |
| Coordinates | 0.0000, 0.0000 |
| Timestamp | 2026-06-29T21:40:00.000Z |
| Source | https://kauai.ccmc.gsfc.nasa.gov/DONKI/view/FLR/47174/-1 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: donki. Occurrence: 2026-06-29T21:40:00.000Z.
First archived: 2026-06-30T20:06:40.061Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Scale | R1 |
| ClassType | M1.4 |
| EventType | radio_blackout |
| SourceLocation | N16W04 |
| DonkiId | 2026-06-29T21:13:00-FLR-001 |
| RadioRisk | minor_degradation |
| Goes Xray FlareClass | M1.3 |
| Goes Xray Letter | M |
| Goes Xray Level | 1.31 |
| Goes Xray PeakFluxWm2 | 0 |
| Goes Xray EnergyBand | 0.1-0.8nm |
| Goes Xray EventType | solar_flare |
| Soho Lasco ActivityId | 2026-06-29T22:24:00-CME-001 |
| Soho Lasco SpeedKms | 526 |
| Soho Lasco HalfAngleDeg | 18 |
| Soho Lasco IsHalo | false |
| Soho Lasco EarthDirected | true |
| Soho Lasco EventType | cme |
| Soho Lasco Note | Faint CME observed to the NNE in SOHO LASCO C2/C3, likely obscured by the pylon in GOES CCOR-1 and not in STEREO A COR2 due to a data gap starting at 2026-06-29T19:38Z. The source is associated with an M1.4 class flare from AR 14479 peaking at 2026-06-29T21:40Z observed in SDO AIA 131. Also observed |
| MergedSources | [{"id":"goes_xray_M1.5_29712820","source":"goes_xray","severity":"medium","severityValue":50,"timestamp":1782769200000,"latitude":0,"longitude":0},{"id":"goes_xray_M1.3_29713036","source":"goes_xray","severity":"medium","severityValue":50,"timestamp":1782782160000,"latitude":0,"longitude":0},{"id":"soho_lasco_2026_06_29T16_38_00_CME_001","source":"soho_lasco","severity":"low","severityValue":35,"timestamp":1782751080000,"latitude":0,"longitude":0},{"id":"soho_lasco_2026_06_29T22_24_00_CME_001","source":"soho_lasco","severity":"low","severityValue":35,"timestamp":1782771840000,"latitude":0,"longitude":0}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.