Visualització de l'arxiu de dimarts, 17 de març 2015

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Informes
Activitat solar
Activitat auroral
Severe G4 geomagnetic storm

Severe G4 geomagnetic storm conditions has been observed following the impact from a coronal mass ejection associated with a C9 solar flare. This is likely the strongest geomagnetic storm of the current solar cycle. Auroral displays have been reported from many high and middle latitudes locations like Canada where Zoltan Kenwell took this stunning image!

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Coronal mass ejection arrival, G2 geomagnetic storm

The coronal mass ejection likely associated with the C9 solar flare has arrived at Earth, much earlier than expected. A sudden increase in the solar wind and IMF parameters were observed but the direction of the IMF stayed north until around 06:00 UTC when it turned southward for a couple of hours to about -20nT. The geomagnetic field responded and a moderate G2 geomagnetic storm followed.

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Fets del temps al espai

Última Flamarada-X2026/03/30X1.5
Última Flamarada-M2026/04/02M3.5
Última tempesta geomagnètica2026/03/25Kp5+ (G1)
Dies sense taques
Last 365 days3 dies
20263 dies (3%)
Últim dia sense taques2026/02/24
Número mensual mitjà de taques solars
de febrer 202678.2 -34.3
d’abril 2026130 +51.8
Last 30 days92.6 +25.1

Aquest dia a la història*

Erupcions solars
12001X1.77
22017M8.35
31999M6.2
42001M3.57
52017M1.81
DstG
11979-168G4
21960-151G3
31992-105G2
42004-104G2
51994-103G3
*des del 1994

Aurora on this day in history

No observations submitted for this day in history. If you've observed the aurora and you have some amazing photos to show off, submit your observations now!
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