name
Jedi Master
Out of curiosity, some time ago I downloaded from USGS their 'NEIC' earthquakes catalog containing all earthquakes worldwide since 1973, from here. The plot of that data is below - the curve is smoothed by using a running median over 90 days to make it better understandable.
(You can click the image for full size)
What is apparent from looking at this plot is that until 1979 or so there relatively few earthquakes, about 10 or so per day and there was almost no growth in the number of earthquakes per day. At about that time (1979) the curve changes and the number of earthquakes/day increases, but also, the roughness of the curve increases, meaning that there is greater variance between periods of quiet and periods with more earthquake activity. This lasts until about 1992, when the growth in number of earthquakes increases as well as the bumpiness of the curve, until the plateau ends abruptly about 2008, when the average number of earthquakes per day decreases sharply and appears to stabilize at a level around 37 earthquakes/day in mid-2010.
It woule be interesting to know what causes these discernible changes in seismic behavior of all of earth. The sharp decrease in activity in 2008/2009 occurs in the middle of the minimum between solar cycles and the seismic activity generally appears to not have anything to do with solar cycles. It appears as if there is an increase of stress on earth building up for about 30-35 years, stress which is then released or diminished very fast, over 1-2 years.
Whatever the plot means, it look weird. I dont even know if it is appropriate to interpret anything into it - to suppose that earth as a whole can be interpreted to have "one" overall seismic behavior. If this is the case and if this behavior is from inside earth, then what could it be? If what causes this is outside earth, equally, what could it be? It would probably not be from interaction with the known planets - as this would probably show some kind of cyclic behavior. OTOH, there is nothing known about the presence of anything in the solar system able to have this effect, just the usual secretive behavior of TPTB.
I first discovered this some time ago and thought that there was error in the data because I was combining data from different sources. I now found the time to redo this with the USGS catalog linked above and it gives the same result.
BTW, the big Japan earthquake of March/2011 is the third peak from the right.
(You can click the image for full size)
What is apparent from looking at this plot is that until 1979 or so there relatively few earthquakes, about 10 or so per day and there was almost no growth in the number of earthquakes per day. At about that time (1979) the curve changes and the number of earthquakes/day increases, but also, the roughness of the curve increases, meaning that there is greater variance between periods of quiet and periods with more earthquake activity. This lasts until about 1992, when the growth in number of earthquakes increases as well as the bumpiness of the curve, until the plateau ends abruptly about 2008, when the average number of earthquakes per day decreases sharply and appears to stabilize at a level around 37 earthquakes/day in mid-2010.
It woule be interesting to know what causes these discernible changes in seismic behavior of all of earth. The sharp decrease in activity in 2008/2009 occurs in the middle of the minimum between solar cycles and the seismic activity generally appears to not have anything to do with solar cycles. It appears as if there is an increase of stress on earth building up for about 30-35 years, stress which is then released or diminished very fast, over 1-2 years.
Whatever the plot means, it look weird. I dont even know if it is appropriate to interpret anything into it - to suppose that earth as a whole can be interpreted to have "one" overall seismic behavior. If this is the case and if this behavior is from inside earth, then what could it be? If what causes this is outside earth, equally, what could it be? It would probably not be from interaction with the known planets - as this would probably show some kind of cyclic behavior. OTOH, there is nothing known about the presence of anything in the solar system able to have this effect, just the usual secretive behavior of TPTB.
I first discovered this some time ago and thought that there was error in the data because I was combining data from different sources. I now found the time to redo this with the USGS catalog linked above and it gives the same result.
BTW, the big Japan earthquake of March/2011 is the third peak from the right.