Geomagnetic storms in Anchorage on September 15, 2025

September 15, 2025

Anchorage change region

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Maximum Kp index on September 15, 2025

Kp = 5+

A geomagnetic storm was recorded — level G1

Kp = 5+

Changes in the geomagnetic index Kp from September 13 to 15, 2025 for mid latitudes

Time zone — UTC−08 — summer time (Anchorage | geographic coordinates — 61.22 N 149.88 W)

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PNG API: JSON | TXT

Changes in the maximum daily geomagnetic index Kp in September 2025 for mid latitudes

Time zone — UTC−08 — summer time (Anchorage | geographic coordinates — 61.22 N 149.88 W)

August 2025 October 2025

PNG API: JSON | TXT

Geomagnetic index A_p	48
Solar radio flux F10.7	130