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Originally posted by tacjtg
reply to [url= by PuterMan[/url]
Wow. Perhaps the correlations are not nearly as strong as once thought. Thank you for pointing that out PuterMan!
Total Electron Content is a measure of the amount of ions trapped within the magnetosphere.
Originally posted by princeguy
Originally posted by kro32
Actually the earth is more stable right now than any other period of time. Don't forget what's happened in the past from killer volcanoes to ice ages to huge fluctuations in the temperature. Also remember some of the serious plagues we've been affected by in the past.
What's going on right now is really nothing compared to what's happened in the past.
I think what he is talking about is the changes that have been happening over the last couple decades, and how do you know that the earth is more stable than any other period in time? I don't think we have seismograph and solar flare readings from 1000 years ago.
While sunspot numbers are a good indication of solar activity it may be better to look at something which we know is directly affected by that activity and which in turn may influence earthquakes, an intermediary so to speak. We know that solar activity can heavily influence the Earth's magnetosphere, creating fluctuations which we know as geomagnetic storms. Can we find a relationship between these storms and earthquake activity?
The primary method of measuring geomagnetic activity is though the Kp index
04/11/03 – X28+
This solar flare was observed by NASA’s GOES satellite system and is the strongest solar flare recorded to date. It was not directed directly at Earth, but did cause some radio blackouts.
"Researchers using NASA's fleet of five THEMIS spacecraft have discovered a form of space weather that packs the punch of an earthquake and plays a key role in sparking bright Northern Lights.
They call it "a space-quake." That's part of a message to the press making headlines today. The 5 THEMIS satellites were parked 'behind' Earth in its magnetic tail, stretching out deep into space due to the solar wind.
The solar wind is a stream of charged particles ejected from the Sun, sometimes causing severe space weather and geomagnetic storms with beautiful aurora displays. These storms can be dangerous for astronauts, but also cause effects on the Earth' surface. Power outages for example, or earthquakes. As I have written many times it seemed obvious there exists a connection between 'space storms' and devastating earthquakes. Their occurrence came too close for comfort, although in a way unpredictable.
The results from THEMIS now indicate that we shouldn't look so much for the bow shock (where the solar energy hits the magnetosphere), but rather for the tail of the Earth' magnetic field, that spreads out to about 25 times the radius of the Earth (about 6.500 km) into space. Sometimes however the magnetic field lines reconnect and catapult tremendous amounts of energy back to Earth. This causes 'sub-storms' (see left: status) with aurora phenomena at the South- and North-poles. They are accompanied by violent changes of the magnetic field on Earth, causing electro-magnetic anomalies that could be dangerous for us, our electronics and the power grid...
J. Ind. Geophys. Union ( April 2010 )
Vol.14, No.2, pp.115-131
Ionospheric precursors observed during some earthquakes
A.K.Gwal, Santosh Kumar Jain, Gopal Panda 1 and S.K.Vijay 2
Space Science Laboratory, Department of Physics Barkatullah University, Bhopal – 462 026
1Department of Engineering Physics, RKDF Institute of Science and Technology, Bhopal – 462 026
2Department of Physics, Govt. Geetanjali Girls College, Bhopal – 462 026
E-mail: [email protected]
ABSTRACT
Ionospheric anomalies in association with earthquakes were derived using foF2 records from
ionospheric stations. The present study reports the ionospheric perturbations, if any, observed
over the related ionospheric station prior to occurrences of five earthquakes during last three years
at various locations. Initially, foF2 data were analyzed with upper and lower bound and the
observed anomalous changes related to geomagnetic disturbances were filtered out. Then the
remaining perturbations were analyzed in relation to the occurrence of seismic activities. Hence
period considered in this study comes under the quiet geomagnetic conditions. The results of
the study showed some unusual perturbations. These anomalies are strongly time dependent and
appeared some days before the main shock. The possible mechanism to explain these anomalies
is the effect of seismogenic electric field generated just above the surface of the earth within the
earthquake preparation zone well before the earthquake.
EARTH PHYSICS
GEOMAGNETIC ANOMALIES – POSSIBLE EARTHQUAKE
PRECURSORS – LINKED WITH 2004 SIGNIFICANT SEISMIC
ACTIVITY IN VRANCEA (ROMANIA)
D. ENESCU
National Institute for Earth Physics, P.O. Box MG-2, Bucharest-Mãgurele, Romania
Received July 6, 2005
The association between a precursory geomagnetic anomaly and a Vrancea
earthquake of moderate-to-high magnitude (MW = 6.3) followed by weaker earthquakes
(MW < 5) was first proved in this paper. This finding extended to a broader magnitude
range 3.7 ≤ MW ≤ 6.3 the conclusion of our earlier papers [1–6], i.e., that the great
majority of Vrancea earthquakes of magnitudes 3.7 ≤ MW ≤ 5.0 were accompanied
by observable precursory electromagnetic anomalies.
Right now, it seems that neither the precursor time nor the amplitude of the
precursory magnetic anomaly can be linked reliably with the magnitude of the
anticipated earthquake. Knowing the way electric resistivity varies ahead of an
earthquake, we can assert that the earthquake-precursory growth in geomagnetic
impedance is matched by an earthquake-precursory decrease of electric resistivity.
...
Originally posted by poet1b
reply to post by Phage
Total Electron Content is a measure of the amount of ions trapped within the magnetosphere.
Sorry, but you are wrong. An ion is a positively charged particle, while an electron is negatively charged. They are very different.
An ion is an atom or molecule in which the total number of electrons is not equal to the total number of protons, giving it a net positive or negative electrical charge.
Originally posted by ElectricUniverse
reply to post by Solasis
Sol, Chadwickus, as well as Phage have always had a bias against research that contradicts their point of view.
They both conduct their own made up studies, and pick and choose whatever data they want discarding everything else and then try to conclude victoriously, at least they think so, that they are right even though they are completely wrong.
Originally posted by kro32
Originally posted by DesirableAnswers
Actually something that will interest all of you, As much as the attention was focused on California because of that girls prediction. The information provided by the original poster was right in there being an earthquake a 6.4 magnitude earthquake hit 438 Km's Northwest of Tonga at a depth of 23 km's no reports of injuries or damage or tsunami warnings though. But just because it didn't hit as predicted a large earthquake did strike within the time frame for this to be pretty accurate.
Man, less that 15 hours after the big quake hit there they had 2 aftershocks that were over 7.0 and I believe they had over 300 over magnitude 3.0 in the first 3 days.
Quit trying to reach to verify something.
Originally posted by Solasis
...
Your aggression does you no good; you transform your position into a position against Chadwickus and PHage rather than against their evidence. It's... annoying.edit on 31-3-2011 by Solasis because: (no reason given)
Solar activity as a triggering mechanism for earthquakes
John F. Simpsona, b
a Goodyear Aerospace Corporation, USA
b University of Akron, Akron, Ohio, USA
Received 7 November 1967; revised 16 December 1967. Available online 28 October 2002.
Abstract
Solar activity, as indicated by sunspots, radio noise and geomagnetic indices, plays a significant but by no means exclusive role in the triggering of earthquakes. Maximum quake frequency occurs at times of moderately high and fluctuating solar activity. Terrestrial solar flare effects which are the actual coupling mechanisms which trigger quakes appear to be either abrupt accelerations in the earths angular velocity or surges of telluric currents in the earths crust. The graphs presented in this paper permit probabilistic forecasting of earthquakes, and when used in conjunction with local indicators may provide a significant tool for specific earthquake prediction.
Originally posted by Phage
There is little evidence of a relationship between geomagnetic activity and earthquakes.
Relationship between night airglow and seismic activity Fishkova, L. M.; Gokhberg, M. B.; Pilipenko, V. A. Annales Geophysicae (ISSN 0755-0685), vol. 3, Nov.-Dec. 1985, p. 689-694.
The results of photometric observations of the night airglow at the Abastumani Astrophysical Observatory at the time of near-by earthquakes are given. The intensity of the green oxygen line (lambda = 5577 A) was observed to go through a maximum several hours before the earthquake. This increase is proved by the statistical analysis of 400 small local earthquakes. The intensities of the red oxygen line (lambda = 6300 A) and hydroxyl OH bands had no distinct anomalies. The described phenomena may be related to an enhanced electron precipitation into the lower ionosphere induced by radioemission of seismic origin.
----
Paper: Temporal Evolution of Energetic Electron Precipitation as a Promising Tool for Earthquake Prediction Research: Analysis of IDP / DEMETER Observations Volume: 424, Proceedings of the 9th International Conference of the Hellenic Astronomical Society Page: 67 Authors: Anagnostopoulos, G.; Rigas, V.; Athanasiou, M.; Iliopoulos, A.; Vassiliadis, E.; Iossifidis, N.
Abstract: In this study we present spatial and temporal correlation results of energetic (70 – 2350 keV) electron bursts (EBs) detected by the DEMETER spacecraft (700 km alt.) before great (M>6.7) Earthquakes (EQs) in general and statistical results for 13 EQs in and near Japan. The EBs were found to show a characteristic flux-time profile, time duration and energy spectrum and are associated with VLF activity. The most important finding of this study is a characteristic pattern of the temporal distribution of the daily number of EBs that shows an increasing at the first phase (which starts 2–4 weeks before the EQ), and a decreasing in the second phase, that reaches a local minimum around the occurrence time of the EQ, in agreement with some other physical parameters related with EQs. This temporal evolution pattern allows the determination of a first signal, a long time (several days to few weeks) before a possible intense seismic event, and a short time (few to several hours) signal before the coming EQ. The statistical analysis of EBs of this type confirms a strong correlation between the number of EBs observed near the EQ epicenter and all over the globe, suggesting a useful prediction research tool even for distant EQs.
----
Radiation belt electron precipitation in the upper ionosphere at middle latitudes before strong earthquakes G. Anagnostopoulos, V. Rigas, E. Vassiliadis (Submitted on 16 Dec 2010) In this article we present examples of a wider study of space-time correlation of electron precipitation event of the Van Allen belts with the position and time of occurrence of strong (M>6.5) earthquakes. The study is based on the analysis of observations of electron bursts (EBs) with energies 70 - 2350 keV at middle geographic latitudes, which were detected by DEMETER satellite (at an altitude of ~700 km). The EBs show a relative peak-to-background increase usually < 100, they have a time duration ~0.5 - 3 min, energy spectrum with peaks moving in higher energies as the satellite moves towards the equator, and highest energy limit
Originally posted by zerotensor
Originally posted by Phage
There is little evidence of a relationship between geomagnetic activity and earthquakes.
That is not true, Phage.
Originally posted by General.Lee
Originally posted by tacjtg
reply to [url= by PuterMan[/url]
Wow. Perhaps the correlations are not nearly as strong as once thought. Thank you for pointing that out PuterMan!
Although that's good info, I wouldn't necessarily say it debunks it. ie. to say that "all the killers had brown shoes" doesn't mean "everybody with brown shoes is a killer".