CME Halo — 1105 km/s
Coronal Mass Ejection detected at 2026-08-20T18:48Z. Linear speed: 1105 km/s. Half-angle: 39°. Full halo CME — potential global geomagnetic impact. CME first seen to the WSW in SOHO LASCO C2 starting at 2026-08-20T18:48Z. It is also seen to the WSW in SOHO LASCO C3 and GOES CCOR-1 and to the SW in STEREO A COR2. The source of this CME is a large
Geographic Context
This solar storm event occurred at coordinates 0.00°, 0.00°.
Event Assessment
This event is a solar storm event classified as high severity. Calamity.live has classified it as "high" severity with a severity value of 75. 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 | high |
| Severity Value | 75 |
| Calamity Score | 22 / 100 |
| Confidence | 50% |
| Coordinates | 0.0000, 0.0000 |
| Timestamp | 2026-08-20T18:48:00.000Z |
| Source | https://kauai.ccmc.gsfc.nasa.gov/DONKI/view/CME/48173/-1 |
Score Breakdown
Technical Details
| ActivityId | 2026-08-20T18:48:00-CME-001 |
| SpeedKms | 1105 |
| HalfAngleDeg | 39 |
| IsHalo | true |
| EarthDirected | false |
| EventType | cme |
| Note | CME first seen to the WSW in SOHO LASCO C2 starting at 2026-08-20T18:48Z. It is also seen to the WSW in SOHO LASCO C3 and GOES CCOR-1 and to the SW in STEREO A COR2. The source of this CME is a large filament eruption seen near the SW limb in STEREO A EUVI 304 starting as early as 2026-08-20T18:15Z. |
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.
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.