A Chinese study monitoring low-frequency time-code signals during the November 2025 geomagnetic storm found that signal strength dropped by over 2.3 dBμV/m and timing accuracy degraded by more than 2.4 milliseconds as solar activity disrupted the ionosphere.
Geomagnetic storm could spark northern lights as far south as Michigan and Maine May 15-17
Geomagnetic storm could spark northern lights as far south as New York and Idaho tonight
Northern lights dazzle worldwide as strong G3 geomagnetic storm sparks stunning show (photos)
Severe G4 geomagnetic storm sparks jaw-dropping northern lights worldwide (photos)
15 U.S. States On Aurora Alert Tuesday After Geomagnetic Storm Warning
Northern Lights set to dazzle UK this week due to possible 'Severe' geomagnetic storm
Surprise geomagnetic storm arrives early as NOAA warns more solar impacts are on their way today
Aurora alert! Butterfly-shaped 'hole' in sun's atmosphere could spark geomagnetic storm Sept. 13-14
Severe G4 geomagnetic storm sparks northern lights across US and beyond (photos)
Powerful Mother's Day geomagnetic storm created radio-disrupting bubbles in Earth's upper atmosphere
NASA names geomagnetic storm for 1st time, honoring a space weather scientist who died suddenly in 2024
Valentine's Day Aurora Alert: Geomagnetic storm could bring northern lights as far south as Michigan and Maine tonight and tomorrow
Aurora alert: Geomagnetic storm could spark northern lights in upper Midwest skies this Christmas
