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Monthly overview (Apr 2004)

The monthly mean values of the geomagnetic field components at Kakioka are D: -7°-3.1′°, H: 29994nT, Z: 35372nT and F: 46377nT for April 2004.

Monthly average of the K-index daily sum is 14. indicates a moderate level of geomagnetic activity during the month.

Notable geomagnetic events include 1 magnetic storms, 5 si, 2 bay, 1 sfe, 6 pi and 0 pc.

The international 5 quietest days are the 1,2,20,22,29^th.

The international 5 most disturbed days are the 3,5,6,9,23^th.

Date	K-index daily sum	Geomagnetic activity	International 5 quietest days	International 5 quietest days	geomagnetic 1-minute value plot
1	07	calm	○		plot
2	05	calm	○		plot
3	27	disturbed		○	plot
4	21	moderately disturbed			plot
5	20	moderately disturbed		○	plot
6	21	moderately disturbed		○	plot
7	19	moderately disturbed			plot
8	18	moderately disturbed			plot
9	20	moderately disturbed		○	plot
10	13	moderately calm			plot
11	13	moderately calm			plot
12	15	moderately calm			plot
13	08	calm			plot
14	07	calm			plot
15	11	moderately calm			plot
16	20	moderately disturbed			plot
17	12	moderately calm			plot
18	16	moderately calm			plot
19	09	calm			plot
20	04	calm	○		plot
21	11	moderately calm			plot
22	10	calm	○		plot
23	22	moderately disturbed		○	plot
24	17	moderately disturbed			plot
25	17	moderately disturbed			plot
26	10	calm			plot
27	11	moderately calm			plot
28	13	moderately calm			plot
29	07	calm	○		plot
30	16	moderately calm			plot

*) Plot diagram opens in a separate window.