The monthly mean values of the geomagnetic field components at Kakioka are D: -747, H: 30083nT, Z: 35883nT and F: 46825nT for April 2021.
Monthly average of the K-index daily sum is 13.3. indicates a moderate level of geomagnetic activity during the month.
Notable geomagnetic events include 0 magnetic storms, 0 si, 2 bay, 0 sfe, 13 pi and 0 pc.
The international 5 quietest days are the 3,4,6,9,28th.
The international 5 most disturbed days are the 16,17,18,19,25th.
Plot of the geomagnetic hourly value for April 2021
Plot of the K-index daily total sum for 2021
| Date | K-index daily sum |
Geomagnetic activity |
Geomagnetic phenomena |
International 5 quietest days |
International 5 quietest days |
geomagnetic 1-minute value plot |
|---|---|---|---|---|---|---|
| 1 | 11 | moderately calm | plot | |||
| 2 | 12 | moderately calm | pi | plot | ||
| 3 | 07 | calm | plot | |||
| 4 | 05 | calm | plot | |||
| 5 | 10 | calm | plot | |||
| 6 | 07 | calm | plot | |||
| 7 | 21 | moderately disturbed | bay pi | plot | ||
| 8 | 06 | calm | plot | |||
| 9 | 06 | calm | pi | plot | ||
| 10 | 07 | calm | plot | |||
| 11 | 11 | moderately calm | plot | |||
| 12 | 09 | calm | plot | |||
| 13 | 13 | moderately calm | plot | |||
| 14 | 12 | moderately calm | pi | plot | ||
| 15 | 19 | moderately disturbed | plot | |||
| 16 | 25 | disturbed | pi | plot | ||
| 17 | 27 | disturbed | bay | plot | ||
| 18 | 23 | disturbed | pi | plot | ||
| 19 | 24 | disturbed | pi | plot | ||
| 20 | 21 | moderately disturbed | pi | plot | ||
| 21 | 09 | calm | plot | |||
| 22 | 08 | calm | pi | plot | ||
| 23 | 17 | moderately disturbed | pi | plot | ||
| 24 | 16 | moderately calm | pi | plot | ||
| 25 | 23 | disturbed | plot | |||
| 26 | 16 | moderately calm | plot | |||
| 27 | 10 | calm | plot | |||
| 28 | 04 | calm | plot | |||
| 29 | 09 | calm | plot | |||
| 30 | 12 | moderately calm | plot |
*) Plot diagram opens in a separate window.
Copyright (c) Kakioka Magnetic Observatory, Japan Meteorological Agency. All rights reserved.
