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Originally posted by Phage
reply to post by Risen
The change from the Richter to the MMS scale does not result in an across the board downgrading of magnitude. As often as not, the MMS value is higher than the Richter value.
Originally posted by Skellon
Slightly off-topic, but can someone please answer me why Baja / California has been registering seismic activity every 5 minutes or so for 2-3 days now?
I understand after shocks, but it seems relentless.
hisz.rsoe.hu...
[edit on 6-4-2010 by Skellon]
Originally posted by Skellon
Slightly off-topic, but can someone please answer me why Baja / California has been registering seismic activity every 5 minutes or so for 2-3 days now?
Originally posted by Brainiac
reply to post by projectvxn
If you want to do a simple experiment, take a glass of water, fill it up then add ice cubes right until almost to the top of the glass, come baack in an hour, and see if the glass overflowed... The water has to go somewhere right?
In solid form "ice" water is compacted, when melted it expands...
Originally posted by SMR
Originally posted by Skellon
Slightly off-topic, but can someone please answer me why Baja / California has been registering seismic activity every 5 minutes or so for 2-3 days now?
Which is a good thing if you look at it. All those little ones are releasing pressure that could otherwise build up and then release a large one.
I for one welcome all those as the Easter day quake really shook us good.
Originally posted by muzzleflash
Originally posted by Common Good
I been wondering, since we been seeming to get all these earthquakes lately, do you think its global warming?
Another line.
How is it possible that slight differences in atmospheric temperature could have any bearing on the geological activity of the inner Earth?
I just do not see any connections there.
Care to share what you felt connected the two?
Gui-Qing Zhang1
(1) Beijing Astronomical Observatory, Chinese Academy of Science, 100101 Beijing, China
Received: 4 July 1997 Revised: 25 November 1997 Accepted: 25 November 1997
Abstract The relations between sunspot numbers and earthquakes (M≧6), solar 10.7 cm radio flux and earthquakes, solar proton events and earthquakes have been analyzed in this paper. It has been found that: (1) Earthquakes occur frequently around the minimum years of solar activity. Generally, the earthquake activities are relatively less during the peak value years of solar activity, some say, around the period when magnetic polarity in the solar polar regions is reversed. (2) the earthquake frequency in the minimum period of solar activity is closely related to the maximum annual means of sunspot numbers, the maximum annual means of solar 10.7 cm radio flux and solar proton events of a whole solar cycle, and the relation between earthquake and solar proton events is closer than others. (3) As judged by above interrelationship, the period from 1995 to 1997 will be the years while earthquake activities are frequent. In the paper, the simple physical discussion has been carried out.
Key words solar activity - sunspot numbers - solar radio flux - solar proton events
These results supported the exploration and studies of some researchers to a certain extent.
Oh, my wife's friend informed us that he believes Baja is on the direct other side of the earth. The word he used was Antipodal.
Solar activity and global seismicity of the earth
Journal Bulletin of the Russian Academy of Sciences: Physics
Publisher Allerton Press, Inc. distributed exclusively by Springer Science+Business Media LLC
ISSN 1062-8738 (Print) 1934-9432 (Online)
Issue Volume 71, Number 4 / April, 2007
Category Proceedings of the XXIX All-Russia Conference on Cosmic Rays
DOI 10.3103/S1062873807040466
Pages 593-595
Subject Collection Physics and Astronomy
S. D. Odintsov1, G. S. Ivanov-Kholodnyi1 and K. Georgieva2
(1) Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radiowave Propagation, Russian Academy of Sciences, Troitsk, Moscow oblast, 142190, Russia
(2) Laboratory of Solar—Terrestrial Coupling, Bulgarian Academy of Sciences, Sophia, Bulgaria
Abstract Results of studying the character and possible succession of cause-effect relations (in going from a disturbance source on the Sun to a response in the lithosphere in the range of periods from several days to the 11-year solar cycle) have been presented. It has been indicated that the maximum of seismic energy, released from earthquake sources in the 11-yr cycle of sunspots, is observed during the phase of cycle decline and lags 2 yr behind the solar cycle maximum. It has been established that the maximum in the number of earthquakes directly correlates with the instant of a sudden increase in the solar wind velocity.
Original Russian Text © S.D. Odintsov, G.S. Ivanov-Kholodnyi, K. Georgieva, 2007, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2007, Vol. 71, No. 4, pp. 608–610.
The Smithsonian/NASA Astrophysics Data System
Solar activity as a triggering mechanism for earthquakes
Simpson, John F.
Earth and Planetary Science Letters, Volume 3, p. 417-425.
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 earth's angular velocity or surges of telluric currents in the earth's 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 evilod
Originally posted by Brainiac
reply to post by projectvxn
If you want to do a simple experiment, take a glass of water, fill it up then add ice cubes right until almost to the top of the glass, come baack in an hour, and see if the glass overflowed... The water has to go somewhere right?
In solid form "ice" water is compacted, when melted it expands...
As a matter of fact, exactly the opposite is true. Water is denser than ice, which is why ice floats on water. When water freezes, it expands. Try your experiment.