Geomagnetic storms in Kostroma on October 4, 2026

October 4, 2026

Kostroma change region

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Maximum Kp index on October 4, 2026

Kp = 6-

A geomagnetic storm was recorded — level G1

Kp = 6-

Changes in the geomagnetic index Kp from October 2 to 4, 2026 for mid latitudes

Time zone — UTC+03 (Kostroma | geographic coordinates — 57.77 N 40.93 E)

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PNG API: JSON | TXT

Changes in the maximum daily geomagnetic index Kp in October 2026 for mid latitudes

Time zone — UTC+03 (Kostroma | geographic coordinates — 57.77 N 40.93 E)

September 2026 November 2026

PNG API: JSON | TXT

Geomagnetic index A_p	36
Solar radio flux F10.7	92