Large Geomagnetic Storm Underway
Posted by JAC on 6/5/2011, 5:45 am
Gakona, AK magnetometer recording 0.25 Hz harmonics in the vertical polarization.

Usually, the first step in an upcoming large quake.

Space Weather Message Code: WARK06
Serial Number: 175
Issue Time: 2011 Jun 04 2331 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2011 Jun 04 2330 UTC
Valid To: 2011 Jun 05 0900 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
















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Solar Ramp Up - JAC, 6/2/2011, 6:16 am
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