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Earthquake Weather Report for March-April 2013

Updated on August 1, 2014
retrojoe profile image

Has studied astrology/historical seismology since the late '70s in San Francisco. Published in the ISAR International Astrologer in 2012.

The difference, seismically speaking, between February and March 2013, was like night and day. As can be seen in the graphic chart above, February 2013 had the greatest activity of any month during the prior year. March 2013 turned out to be the lowest month. An average month will produce 3 earthquakes of 6.5-7.0 magnitude and 1 earthquake of 7.1 magnitude or larger. But in March 2013, the month started off with 2 after shocks of a 6.9 magnitude quake in the Kuril Islands.

Those two shocks measured 6.4 and 6.5 in magnitude (although that last quake may actually have been a 6.4 magnitude event as well). Since what I really am aiming for in my predictions are main shocks, and possibly pre-shocks of adequate size, the aftershocks are not part of the equation and thus should not be considered as relevant in the results (as was pointed out in an earlier hub in regards to the many aftershocks to the 8.0 Santa Cruz Island quake in February).

Source

The only qualifying earthquake was one in the New Guinea area of Indonesia on March 10. It measured 6.5 or 6.6 magnitude. That one happened to fall within one of my windows, but since those windows encompassed about 41% of the days during that month, I had that much of a chance (or close to 50-50) of having one quake fall within one of my windows since there was just one significant (6.5 magnitude or greater quake) occurring in that month.

The results were more favorable than if the one quake had occurred outside of my window, but there wasn't enough events to make a case for my prediction. I was expecting more activity than there was, so I got that part of things wrong. In other words, the results for March were not exactly a bulls eye and I am hoping that in April of 2013 events will more accurately fit my forecast (to be presented in this hub).

Worldwide earthquake events of 6.0 magnitude or higher as recorded by NEIC and maintained by the USGS for March 2013.
Worldwide earthquake events of 6.0 magnitude or higher as recorded by NEIC and maintained by the USGS for March 2013. | Source

Above is a map displaying quakes of 6.0 magnitude or greater that occurred in March 2013. They amounted to about half of what is normal in any given month. Below is a graphic display showing the earthquake astro values (dark blue line) as they unfold throughout the month of April. Also included are values that represent times when astrology suggests that earthquakes are less likely (hot pink line). They are plotted out every six hours beginning at 00h00m, GMT.

Similar to March 2013, which had windows comprising 41% of the days of that month, April 2013 has 44% designated as window zones. The difference in significant earthquakes failing to accumulate in March 2013 and possibly increasing in the following month may relate to sunspot numbers zigzagging up and down from month to month (see graphic at start of this article). At least for the last few months, when the monthly numbers increased, earthquake activity slowed and when the sunspot numbers dropped, earthquake activity increased. The trend is that sunspots will drop this month significantly from the number total of the prior month and so my hunch is that earthquake activity will be kicked upward again during April 2013.


What follows are my best estimates of windows within which time my astrological interpretations indicate that earthquakes are most likely to occur in April 2013:

4/6/13 0600UTC +-18hrs (peak 0000UTC) Iran, China, Japan, CA, AK

4/12/13 0000UTC +-24hrs (peak 12000UTC, 4/11/13) China, Iran, Mexico, Italy, Chile, Japan, CA

4/18/13 0000UTC +-18hrs China, Iran, Greece, Myanmar, Haiti, AK, CA, ME, HI

4/26/13 1200UTC +-4.5 days (peak 1200UTC, 4/24/13) New Zealand, Chile, Myanmar, Japan, Balkans, Azores, CA, UT, NV, AK

(peak 0000UTC, 4/28/13) Turkey, Mexico, Japan, China, Peru, Bulgaria, Montengro, CA, NV


Copyright © 2013 Joseph W. Ritrovato


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  • retrojoe profile imageAUTHOR

    Joseph Ritrovato 

    5 years ago from Vancouver, WA (nextdoor to Portland, OR)

    Earthquake Weather Update: We now find ourselves in the middle of a three day window where significant earthquakes shouldn't be as likely to occur. A friend of mine who lives in Tokyo pointed out that I mentioned Japan as a likely location for significant quakes in 4 out of 5 windows. I explained to her that Japan receives about 10% of worldwide earthquakes of that size (6.5 magnitude or larger) and I mentioned Japan 4 times out of 40 possible locations. In other words, their chances of experiencing such a quake should be at least average for the month of April in 2013.

    As a comparison, California (where I consider significant events to begin as low as 5.4 or 5.5 magnitude) has only about 1/8th as many quakes in the 6.5 magnitude or larger range as Japan has. Also, California has about as many quakes of 5.5 magnitude and larger as Japan has quakes of 6.5 magnitude and larger. California is mentioned 5 out of 40 times so that they should have at least a just above average chance of receiving a 5.5 or larger magnitude quake in April 2013.

    The Papua Indonesia quake of 7.0 magnitude that occurred within the first seismic window that I described for the month of April 2013, actually occurred 1h17m "before" the midpoint of the 36 hour wide window (and not 1h17m before the peak time as stated in my last comment). It actually occurred 4h43m past the peak time (and I have noticed that the quakes that occur within my forecasted windows usually do so after a peak rather than before one).

  • retrojoe profile imageAUTHOR

    Joseph Ritrovato 

    5 years ago from Vancouver, WA (nextdoor to Portland, OR)

    Earthquake Weather Update: An earthquake with a preliminary magnitude of 7.0 hit Papua, Indonesia (New Guinea) at 4h43m, GMT on April 6, 2013. This happened within my first seismic window for the month and 1h17m before an astrological peak time of 6am, GMT, which was a rough estimate. Although it wasn't spelled out in my hub with my April 2013 forecasts, the earthquakes that I am predicting that are most likely to fall within these windows (as I usually indicate) are 6.5 magnitude or greater in size or what I consider to be significant events. Although this earthquake occurred within the predicted time frame, it did not happen in one of the geographic areas that I felt such a quake was most likely to occur.

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