What is a Geomagnetic Storm and How Does it Affect Earth?

[timacho]

can somebody explain to me what is geomagnetic that recently run down to earth?
i really want to know.

 

[Drakkith]

I'm sorry, what are you referring to? I've never heard of a geomagnetic.

 

[timacho]

i'm really sorry if i got it wrong. but, i just want to know about something at the space that fall to earth, and produce solar storm.i don't really know what it is.

 

[JCMacaw]

Maybe he is referring to the geomagnetic storm that was caused by a solar coronal mass ejection and caused the aurora borealis on January 24?

 

[Radrook]

Here is an excerpt from an article that explains it in detail.

Geomagnetic storm
A geomagnetic storm is a temporary disturbance of the Earth's magnetosphere caused by a disturbance in the interplanetary medium. A geomagnetic storm is a major component of space weather and provides the input for many other components of space weather. A geomagnetic storm is caused by a solar wind shock wave and/or cloud of magnetic field which interacts with the Earth's magnetic field.
http://en.wikipedia.org/wiki/Geomagnetic_storm

Timacho, please note that the geomagnetic storm does not produce a solar storm. Quite the opposite. The geomagnetic storm itself is caused by solar activity. It is
called "geomagnetic" [geo=earth] because it is triggered when the solar wind interacts with Earth's magnetic field.