Geomagnetic storms in Concord on August 4, 2025

August 4, 2025

Concord change region

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Maximum Kp index on August 4, 2025

Kp = 3

The Earth's magnetosphere was quiet

Kp = 3

Changes in the geomagnetic index Kp from August 2 to 4, 2025 for mid latitudes

Time zone — UTC−04 — summer time (Concord | geographic coordinates — 43.22 N 71.55 W)

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PNG API: JSON | TXT

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

Time zone — UTC−04 — summer time (Concord | geographic coordinates — 43.22 N 71.55 W)

July 2025 September 2025

PNG API: JSON | TXT

Geomagnetic index A_p	8
Solar radio flux F10.7	142