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4w ago

Severe Geomagnetic Storm Eases to Kp 7.3, Models Warn of Renewed Surge

Upgraded to G4 by international agencies, the June 1 disturbance could rebound to severe levels within 24 hours

Una fotografía muestra una erupción de una prominencia solar.
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Overview

  • A high-speed coronal mass ejection linked to an M8.2 solar flare struck Earth’s magnetosphere on June 1 between 8:00 and 11:00 CEST.
  • The storm peaked at a Kp index of 8 before moderating to around 7.3, though levels remain within the geomagnetic storm range.
  • NOAA, the European Space Agency and Spain’s space agency have classified the event as a G4-level severe geomagnetic storm.
  • Potential impacts include disruptions to high-latitude power grids, high-frequency radio communications, GPS navigation errors and increased drag on low-orbit satellites.
  • No major anomalies have been reported so far, but operators are urged to monitor real-time data and prepare for a possible surge within the next 24 hours.