G2moderate

The geomagnetic storm of 29 – 30 January 1957

On 29 – 30 January 1957 the Kp index reached 6−: a G2 (moderate) storm, with 18 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 · 30 January 1957 03:00 UT

18Hours at Kp 5 or more

67Largest ap

Solar cycle 19Year 3 of solar cycle 19

Kp every three hours

56789

28 Jan29 Jan30 Jan31 Jan

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 storm24 – 25 January 1957 · Kp 5+

Next storm4 – 5 February 1957 · Kp 6

1957

Geomagnetic storms of 1957Every storm

Geomagnetic storms since 1932Geomagnetic storm archive

Strong storms at the same time of year

25 – 26 January 1938Kp 9− · 24 h

2 – 3 February 1969Kp 8 · 30 h

1 – 4 February 1992Kp 8− · 45 h

1 – 5 February 1982Kp 7 · 75 h

28 – 30 January 1945Kp 7 · 21 h

31 January 1951Kp 7− · 9 h