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Strongest Geomagnetic Storm 2025
November 11 , 2025
16 hrs 0 min
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- NASA confirmed that Earth is experiencing its strongest geomagnetic storm of the year, classified as a G5 event.
- The storm was triggered by multiple solar eruptions called coronal mass ejections (CMEs) that merged into a large plasma wave before reaching Earth.
- The event caused widespread aurora sightings across northern Europe, Canada, the United States, and the United Kingdom.
- Scientists observed a sharp drop in the Disturbance Storm Time (Dst) index, indicating high geomagnetic activity.
- The storm disrupted satellite communications, GPS systems, and power grids, similar to the 2003 “Halloween Storms.”
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