Alerte géomagnétique

Une explosion de classe X ce matin et une alerte:

SUBJ: IPS GEOMAGNETIC DISTURBANCE WARNING 11/04
ISSUED AT 08/0555Z MARCH 2011
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED
DUE TO CORONAL MASS EJECTION FROM 09-10 MARCH 2011

An increase in geomagnetic activity is possible as the
result of an anticipated glancing impact at Earth from
recent CME activity.
(IPS)

A first look at coronagraph images from NASA's STEREO-B spacecraft suggests that the explosion did propel a coronal mass ejection (CME) toward Earth. This conclusion is preliminary, however, so check back later for updates.
After four years without any X-flares, the sun has produced two of the powerful blasts in less than one month: Feb. 15th and March 9th. This continues the recent trend of increasing solar activity, and shows that Solar Cycle 24 is heating up. NOAA forecasters estimate a 5% chance of more X-flares during the next 24 hours. SpaceWeather

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