by Mitch Battros - Earth Changes Media
Important variations in the magnetic field, observed by satellites in certain areas of the globe, could herald an inversion of the poles.
This phenomenon has already come about several times in the history of the planet. Is the Earth losing its compass?
This is what a study by the Department of Geomagnetism and Paleomagnetism of the Paris Geophysical Institute (l'Institut de physique du globe de Paris [IPG]) would have us believe. We are all contained by the Earth's magnetic field without really noticing it. We become aware of it only when we use a compass to find our way. This is the most obvious manifestation of the Earth's magnetism, which has existed for 3 billion years and is generated 3,000 kilometers under our feet by the stirring of our planet's liquid iron core. This liquid iron core causes the Earth to act like a giant magnet; the magnetic lines are organized on a bipolar basis, more or less in alignment with the Earth's rotational axis.
This bipolar configuration, however, is not permanent. It varies with the movement of the Earth's liquid core, and in the past, the positions of the magnetic poles have been known to switch entirely. These phenomena were verified by paleo-magnetic studies on ancient volcanic basalts. The latter contain magnetic grains that kept both the orientation and strength of the Earth's magnetic field when they became solid.
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Magnitude 6.9 Quake Hits Honshu, Japan
A magnitude 6.9 earthquake has struck off the northeastern coast of Japan almost exactly one year after a devastating tsunami killed thousands.
A destructive widespread tsunami was not generated based on historical earthquake and tsunami data
However, earthquakes of this size sometimes generate local tsunamis that can be destructive along coasts located within a hundred kilometers of the earthquake epicenter. Authorities in the region of the epicenter should be aware of this possibility and take appropriate action.
The Japan Meteorological agency may also issue a tsunami message for this event to countries in the Northwest Pacific and South China Sea region. In case of conflicting information, the more conservative information should be used for safety.
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Yesterday's M8-Class Flare Now Confirmed CME Following
A M8-class flare occurred on March 13th from sunspot region 1429, peaking at 1741 UT. It is associated with a mild proton event still in progress for >10MeV protons.
A fast CME (coronal mass ejection) was observed. It is expected that the bulk of the CME will not encounter Earth, and therefore the geomagnetic effects should be minimum.
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