CME Halo — 680 km/s
Coronal Mass Ejection detected at 2026-05-23T16:00Z. Linear speed: 680 km/s. Half-angle: 32°. Full halo CME — potential global geomagnetic impact. CME observed to the WNW in SOHO LASCO C2/C3 and GOES CCOR-1, and NW as a partial halo in STEREO A COR2. The source is just NW of AR 14441 (N08W67), centered around N18W75. First observed as field line
Geographic Context
This solar storm event occurred at coordinates 0.00°, 0.00°.
Event Assessment
This event is a solar storm event classified as medium severity. Calamity.live has classified it as "medium" severity with a severity value of 55. The computed Calamity Score is 22 out of 100, suggesting contained impact at this time. The primary scoring components are: historical (80), intensity (20), population (20). Data for this event was sourced from soho_lasco, one of the 250 scientific monitoring sources aggregated by Calamity.live.
Regional Monitoring Context
This solar storm event is being tracked through Calamity.live's global monitoring network, which aggregates data from 250 scientific sources. Real-time monitoring and multi-source verification help ensure data accuracy and timely reporting of significant natural hazard events worldwide.
Event Data
| Type | Solar Storm |
| Severity | medium |
| Severity Value | 55 |
| Calamity Score | 22 / 100 |
| Confidence | 49% |
| Coordinates | 0.0000, 0.0000 |
| Timestamp | 2026-05-23T16:00:00.000Z |
| Source | https://kauai.ccmc.gsfc.nasa.gov/DONKI/view/CME/46314/-1 |
Score Breakdown
Technical Details
| ActivityId | 2026-05-23T16:00:00-CME-001 |
| SpeedKms | 680 |
| HalfAngleDeg | 32 |
| IsHalo | true |
| EarthDirected | false |
| EventType | cme |
| Note | CME observed to the WNW in SOHO LASCO C2/C3 and GOES CCOR-1, and NW as a partial halo in STEREO A COR2. The source is just NW of AR 14441 (N08W67), centered around N18W75. First observed as field line movement and loop breaking on the NW limb in SDO AIA 171/193, and dimming in SDO AIA 193, starting |
Safety Information
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This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Calamity.live data shows a solar storm event with CalamityScore 22/100, based on data from soho_lasco. Source: Calamity.live, a platform aggregating real-time data from 197 scientific monitoring sources.