The monthly mean values of the geomagnetic field components at Kakioka are D: -738, H: 30009nT, Z: 35852nT and F: 46753nT for September 2018.
Monthly average of the K-index daily sum is 12.9. indicates a slightly low level of geomagnetic activity during the month.
Notable geomagnetic events include 1 magnetic storms, 0 si, 6 bay, 0 sfe, 12 pi and 0 pc.
The international 5 quietest days are the 1,3,8,19,20th.
The international 5 most disturbed days are the 10,11,13,14,22th.
Plot of the geomagnetic hourly value for September 2018
Plot of the K-index daily total sum for 2018
Details of the geomagnetic storms in September 2018
| Date | K-index daily sum |
Geomagnetic activity |
Geomagnetic phenomena |
International 5 quietest days |
International 5 quietest days |
geomagnetic 1-minute value plot |
|---|---|---|---|---|---|---|
| 1 | 10 | calm | plot | |||
| 2 | 06 | calm | plot | |||
| 3 | 09 | calm | plot | |||
| 4 | 12 | moderately calm | plot | |||
| 5 | 16 | moderately calm | pi | plot | ||
| 6 | 08 | calm | plot | |||
| 7 | 13 | moderately calm | pi | plot | ||
| 8 | 11 | moderately calm | plot | |||
| 9 | 13 | moderately calm | plot | |||
| 10 | 15 | moderately calm | storm bay | plot | ||
| 11 | 26 | disturbed | bay pi | plot | ||
| 12 | 14 | moderately calm | pi | plot | ||
| 13 | 20 | moderately disturbed | plot | |||
| 14 | 20 | moderately disturbed | pi | plot | ||
| 15 | 11 | moderately calm | pi | plot | ||
| 16 | 08 | calm | plot | |||
| 17 | 16 | moderately calm | pi | plot | ||
| 18 | 12 | moderately calm | plot | |||
| 19 | 05 | calm | plot | |||
| 20 | 01 | extremely calm | plot | |||
| 21 | 10 | calm | plot | |||
| 22 | 21 | moderately disturbed | bay | plot | ||
| 23 | 17 | moderately disturbed | bay | plot | ||
| 24 | 16 | moderately calm | pi | plot | ||
| 25 | 18 | moderately disturbed | bay pi | plot | ||
| 26 | 12 | moderately calm | pi | plot | ||
| 27 | 13 | moderately calm | bay pi | plot | ||
| 28 | 10 | calm | pi | plot | ||
| 29 | 17 | moderately disturbed | plot | |||
| 30 | 08 | calm | plot |
*) Plot diagram opens in a separate window.
Copyright (c) Kakioka Magnetic Observatory, Japan Meteorological Agency. All rights reserved.
