G2moderate

The geomagnetic storm of 15 July 1976

On 15 July 1976 the Kp index reached 6−: a G2 (moderate) storm, with 3 hours at Kp 5 or more. At its peak the lights could be seen from 352,522 places in the atlas, down to about 50° magnetic latitude.

Kp 6−Peak Kp · 15 July 1976 18:00 UT

3Hours at Kp 5 or more

67Largest ap

Solar cycle 21Year 1 of solar cycle 21

Kp every three hours

56789

14 Jul15 Jul16 Jul

Where the lights could be seen

At Kp 6− the lights reach 352,522 places of the atlas on the horizon and 116,237 overhead, down to about 50° magnetic latitude.

Countries

Russia140,354 placesUnited States35,956 placesSweden27,876 placesFinland24,291 placesLithuania20,495 placesCanada19,463 placesBelarus16,617 placesNorway13,111 placesUnited Kingdom10,715 placesLatvia7,542 places

At the edge: just within reach

MinskBelarusSamaraRussiaLeedsUnited KingdomBostonUnited StatesTolyattiRussiaBarnaulRussiaDublinIrelandManchesterUnited Kingdom

The largest towns that could see them

Before and after

Previous storm1 July 1976 · Kp 5−

Next storm23 – 24 August 1976 · Kp 6−

1976

Geomagnetic storms of 1976Every storm

Geomagnetic storms since 1932Geomagnetic storm archive

Strong storms at the same time of year

14 – 16 July 2000Kp 9 · 36 h

12 – 15 July 1982Kp 9 · 63 h

15 – 16 July 1959Kp 9 · 27 h

12 – 14 July 1991Kp 9− · 48 h

17 – 19 July 1959Kp 9− · 36 h

13 – 15 July 1961Kp 8+ · 36 h