from ScienceNews.org...
Pole flips tied to plate tectonics
Lopsided arrangement of continents could lead to reversals in Earth's magnetic field
Continents moving around over millions of years in the slow-motion
geologic jigsaw puzzle known as plate tectonics could trigger the
occasional swapping of the north and south magnetic poles.
Assumed to be caused by random fluctuations in the circulation of the
molten iron core, the flips may actually be tied to what’s going on at
Earth’s surface. At times in the geologic past when landmasses have
bunched together on one side of the equator, the Earth’s magnetic field
has begun flipping soon thereafter, suggests a study to appear in Geophysical Research Letters.
“What we see clearly is that the surface positions of the continents
are linked with the frequency of the reversals,” says group member
François Pétrélis, a geophysicist at the French research agency CNRS in
Paris.
Other scientists aren’t so sure, cautioning that more work needs to be done to confirm any such link.
Computer simulations have shown how molten iron in the spinning core
can generate magnetic fields that spontaneously flip direction every so
often, so that a compass that once pointed north would suddenly begin
pointing south. The last reversal happened around 780,000 years ago.
Before that there were times when no flips happened for tens of millions
of years, followed by periods with lots of flips.
Curious about what drove these changes, Pétrélis and his colleagues
mathematically probed the way liquid iron flows in the core. In earlier
work, they found that if the flow is interrupted so that it no longer
moves symmetrically with respect to the equator, the planet’s magnetic
field soon reverses.
Now the researchers have calculated where the continents sat at
various points in the past, to see when they had equatorial symmetry.
When the distribution of landmasses was lopsided, the team found,
magnetic field flips followed soon after. And when continents were more
evenly arranged ... read more at http://www.sciencenews.org
Here is another site that is reporting on the quakes...
PLANETARY TREMORS: Magnitude 6.6 Earthquake Strikes the South Shetland Islands! UPDATE: Magnitude 6.2 Tremor Rattles the Same Region!
A 6.6 magnitude earthquake has struck the South Shetland Islands.
According to the U.S. Geological Survey (USGS), the tremor hit at
Sunday, January 15, 2012 at 13:40:17 UTC. It was located at 60.755°S,
55.473°W.
The quake had a depth of 1 km (0.6 mile) and is described by the USGS as "poorly constrained". The epicentre was at a distance of 464 km (288 miles) west (267°) from Coronation Island, South Orkney Islands; 1017 km (632 miles) south (173°) from Stanley, Falkland Islands; and 1256 km (781 miles) southeast (138°) from Punta Arenas, Chile.
A Green alert for shaking-related fatalities and economic losses have been issued by the USGS. There is a low likelihood of casualties and damage. There are likely to be no affected structures in this region. Historically, there were no earthquakes with significant population exposure to shaking within a 400 km radius of this event. There were no cities available in the USGS database within the exposure map boundary.
NOTE: USGS has this earthquake listed as a 6.6 magnitude, the Tsunami Report registered a 6.7 magnitude with a depth of just 1 km. Stations closest to the epicentre measured it anywhere from a 5.9 to a 7.5 magnitude.
UPDATE: Magnitude 6.2 Earthquake Rattles the Same Region!
Another 6.2 magnitude tremor has just hit the same region. This one hit on Sunday, January 15, 2012 at 14:21:32 UTC and was located at 60.797°S, 55.999°W.
read more at this great site at http://thecelestialconvergence.blogspot.com
.......
Here is another great site talking about the same thing...
........
Large-scale seismic activity rising along planet’s southern pole
January 15, 2012 – ANTARTICA -
A strong and shallow series of earthquakes have erupted near the remote
South Shetland Islands region of Antarctica on Sunday, experts from the
U.S. Geological Survey said. The earthquakes in the intense
tectonically-activated series measured a 6.6 magnitude, followed by a 6.2 magnitude earthquake and a 5.1
aftershock. The epicenter of the earthquakes was at various depths of
from one kilometer (0.62 miles) to 14 km (9.2 miles) below the earth’s
surface and some 464 kilometers west of Coronation Island in distance.
No destructive tsunami was created, according to the U.S. NOAA warning
center. The earthquake series is worrisome because it’s further evidence
of what I have been warning about for over the past 6 months, that the
Southern hemisphere, particularly around the periphery of Antarctic, is
shows increasing signs of seismic destabilization. On January 12, there
was a swarm of five moderate earthquakes which erupted south of Africa-
the strongest of which was a 5.3 and a 5.5. On January 13, the South Sandwich Islands, north of Antarctica, was hit with a 5.1, and 5.2. On January 14 the region was struck again with a 5.0 earthquake and another 4.9 on January 15th.
Not only are earthquakes increasing along the southern polar region but
in November of 2011, the Tasmania’s Antarctic Climate and Ecosystem
centre found that the South Ocean was storing more heat than any other
ocean on the planet. The shape of the earth, a mal-formed spheroid,
whose center of gravity is becoming increasing displaced by the
turbulent shifting of the planet’s mass due to a wave of strong
earthquakes that have rattled the planet over the last 7 years. These
large mega-thrust earthquakes are exacting a terrible toll of stress on
the planet’s angular momentum. In 2004, the planet suffered a
devastating 9.1 mega-thrust earthquake in the Indian Ocean near the Sunda Strait. In February of 2010, Chile was rocked by a 8.8 magnitude earthquake and in March of 2011, Japan was similarly hit with a 9.0
magnitude earthquake and tsunami. In April of 2011, the European
satellite Gravity field and steady-state Ocean Circulation Explorer, or
GOCE released a detailed map of Earth’s gravity field. ...
read more here http://theextinctionprotocol.wordpress.com/
...
here's more
...
25 volcanoes in Indonesia are now showing abnormal activity
Posted by khan on January 16, 2012 at 12:54am
Jan 15, 2012
Padang, West Sumatra. Twenty-five volcanoes in
Indonesia are now showing abnormal activity or have been put on alert or
watch status, presidential special aide Andi Arief said here on
Saturday.
“According to official data, 25 volcanoes are now under alert or watch status and they must be given priority with regard to disaster mitigation planning at district or city levels,” he said at a workshop on journalists’ role in disaster management.
He said in West Sumatra there were two volcanoes that need to be closely watched, namely Mount Marapi and Mount Talang, as they are still under alert status. read more here http://poleshift.ning.com/profiles/blogs/25-volcanoes-in-indonesia-are-now-showing-abnormal-activity
“According to official data, 25 volcanoes are now under alert or watch status and they must be given priority with regard to disaster mitigation planning at district or city levels,” he said at a workshop on journalists’ role in disaster management.
He said in West Sumatra there were two volcanoes that need to be closely watched, namely Mount Marapi and Mount Talang, as they are still under alert status. read more here http://poleshift.ning.com/profiles/blogs/25-volcanoes-in-indonesia-are-now-showing-abnormal-activity
...more...
7 of 10 SINKING; Indonesia Serang, Pandeglang and Lebak in Banten inundated by up to five metres of floodwaters. The condition was caused by sea level rise!
Posted by Stanislav on January 15, 2012 at 7:34pm read more by clicking here
...here is more...
LISS is Showing Worldwide Wobble
read more here... http://poleshift.ning.com
...more...
Earth Flips Magnetic Poles All the Time
Source: NASA press release
 |
| Schematic illustration of Earth's magnetic field. Credit/Copyright: Peter Reid |
Reversals are the rule, not the exception. Earth has settled in the last 20 million years into a pattern of a pole reversal about every 200,000 to 300,000 years, although it has been more than twice that long since the last reversal. A reversal happens over hundreds or thousands of years, and it is not exactly a clean back flip. Magnetic fields morph and push and pull at one another, with multiple poles emerging at odd latitudes throughout the process. Scientists estimate reversals have happened at least hundreds of times over the past three billion years. And while reversals have happened more frequently in "recent" years, when dinosaurs walked Earth a reversal was more likely to happen only about every one million years.
Here is a link to real-time magnetosphere simulation. You may find it interesting...
I think that will sum up what we are seeing. There is something real that is linked to the seismic activity, volcanic activity and the pole shift activity. If anyone has good solid research that is recently done...very recent...on this topic, I'd love you to send it my way.
1 comment:
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