The monthly mean values of the geomagnetic field components at Kakioka are D: -734.7, H: 29973nT, Z: 35827nT and F: 46711nT for September 2017.
Monthly average of the K-index daily sum is 17.5. indicates a high level of geomagnetic activity during the month.
Notable geomagnetic events include 5 magnetic storms, 0 si, 9 bay, 4 sfe, 8 pi and 0 pc.
The international 5 quietest days are the 9,22,23,25,26th.
The international 5 most disturbed days are the 7,8,15,27,28th.
Plot of the geomagnetic hourly value for September 2017
Plot of the K-index daily total sum for 2017
Details of the geomagnetic storms in September 2017
| Date | K-index daily sum |
Geomagnetic activity |
Geomagnetic phenomena |
International 5 quietest days |
International 5 quietest days |
geomagnetic 1-minute value plot |
|---|---|---|---|---|---|---|
| 1 | 21 | moderately disturbed | bay | plot | ||
| 2 | 23 | disturbed | bay | plot | ||
| 3 | 15 | moderately calm | plot | |||
| 4 | 18 | moderately disturbed | sfe | plot | ||
| 5 | 15 | moderately calm | sfe | plot | ||
| 6 | 14 | moderately calm | storm | plot | ||
| 7 | 26 | disturbed | storm sfe | plot | ||
| 8 | 35 | disturbed | plot | |||
| 9 | 04 | calm | plot | |||
| 10 | 04 | calm | plot | |||
| 11 | 18 | moderately disturbed | plot | |||
| 12 | 25 | disturbed | storm | plot | ||
| 13 | 19 | moderately disturbed | plot | |||
| 14 | 24 | disturbed | storm pi | plot | ||
| 15 | 27 | disturbed | bay pi | plot | ||
| 16 | 24 | disturbed | plot | |||
| 17 | 21 | moderately disturbed | bay | plot | ||
| 18 | 25 | disturbed | pi | plot | ||
| 19 | 12 | moderately calm | plot | |||
| 20 | 14 | moderately calm | bay | plot | ||
| 21 | 09 | calm | plot | |||
| 22 | 06 | calm | plot | |||
| 23 | 06 | calm | plot | |||
| 24 | 11 | moderately calm | plot | |||
| 25 | 04 | calm | plot | |||
| 26 | 06 | calm | storm | plot | ||
| 27 | 31 | disturbed | pi | plot | ||
| 28 | 32 | disturbed | pi | plot | ||
| 29 | 17 | moderately disturbed | plot | |||
| 30 | 20 | moderately disturbed | bay pi | plot |
*) Plot diagram opens in a separate window.
Copyright (c) Kakioka Magnetic Observatory, Japan Meteorological Agency. All rights reserved.
