Home › Geomagnetic history › 2015

Geomagnetic storm on 17 Mar 2015 (G4)

Max Kp8-G4

Ap108No. 1 in 2015

Consecutive G1+ days4

Ap rank138since 1932

Kp by 3-hour slot (UTC)

00–032o

03–065-

06–096-

09–125+

12–158-

15–188-

18–217+

21–248-

The days around it

Date	Max Kp	Ap	Level
14 Mar 2015	2+	5	–
15 Mar 2015	3-	6	–
16 Mar 2015	4-	12	–
17 Mar 2015	8-	108	G4
18 Mar 2015	6o	47	G2
19 Mar 2015	5o	26	G1
20 Mar 2015	5-	22	G1

Highest-Ap days of 2015

17 Mar 2015108

7 Oct 201574

23 Jun 201572

20 Dec 201570

11 Sep 201560

9 Sep 201559

22 Jun 201557

27 Aug 201552

18 Mar 201547

13 May 201546

Dates and time slots are UTC. Kp is the 3-hourly planetary geomagnetic index (0–9); Ap is the daily average disturbance. G1–G5 follow the NOAA storm scale (Kp 5- and above counted as G1). Aurora visibility also depends on weather and location. The latest values are preliminary.

← 2 Oct 2013 22 Jun 2015 →

About this page

Max Kp 8-, Ap 108: No. 138 of 34,615 days since 1932 by Ap.