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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In this thread:
Solar Ramp Up -
JAC,
6/2/2011, 6:16 am- Large D-Layer Absorption at the Poles - JAC, 6/5/2011, 9:10 pm
- Earthworm plague sweeps Cincinnati - ArgosyTn, 6/5/2011, 11:11 am
- Large Geomagnetic Storm Underway - JAC, 6/5/2011, 5:45 am
- Japan under the gun - JAC, 6/3/2011, 7:10 am
- Incoming CMEs and Solar Wind Stream: June 3rd-4th, 2011. - JAC, 6/2/2011, 6:40 am
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