eqtwain
Viewing all principal (6.5>)earthquake history of this fault area it is evident researchers missed something.
In 200+ years no 6.5> quake has taken place near an equinox. How long? Spring: from Feb 10 thru Apr 8. Autumn: Jul 22 thru Oct 16. When principal quakes do occur on this part of the "ring of fire", about 60% come during 1/3 of our orbit around the sun; historically then a "hazard zone" exists from Oct 17 thru Feb 8. That is 114 days.
These facts alone suggest syzygy as we close with perihelion is the major factor aside from geologic stress.
The other missed research has to do with "mindset" that absolutely closes our minds to any cycle (periodicity) which may play a part. Following the historical record it is evident that the Metonic cycle is playing a part. That cycle represents 235 lunar months or 19 years. Researchers have discarded the 18.6 year cycle but missed the Metonic cycle for checking principal quakes on segments or attached segments. Consider the segments that run parallel with the ring of fire. 1)1838 S.F. a 7.0, 1857 Ft. Tejon a 8.25, then after 5 cycles 1952 Kern County a 7.7, another cycle and 1971 San Fernando a 6.5, and finally a bit early by the Roman calendar Oct 1989 (count as 1990) Loma Prieta a 7.1. There are others, but the current segment to look at follows. Notice the segments are not always triggered, sometimes skipping several times. So look for 19, 38, 57, 76, etc. between events. So there are safe zones of about 18 years on individual segments; and each seems to have its own base year in which it may be triggered.
The lowest magnitude which appears to follow this phenomenon shows a 6.4 at San Jacinto in 1899, then a 6.5 in San Jacinto in 1918, then 2 cycles later a 6.8 in San Miguel, Mexico in 1956, followed 2 cycles later in 1994 with a 6.8 at Northridge, CA. Currently this opens up the possibility of a principal quake (2013)anywhere on that "segment/connecting segments" running parallel to the ring of fire. Near Northridge the area is highly stressed and population density is high. The USGS has totally dismissed this information "in writting" via snail mail to me. So if there is a disaster down south anyone reading this (my very first post) will know; Menlo Park was alerted.
In 200+ years no 6.5> quake has taken place near an equinox. How long? Spring: from Feb 10 thru Apr 8. Autumn: Jul 22 thru Oct 16. When principal quakes do occur on this part of the "ring of fire", about 60% come during 1/3 of our orbit around the sun; historically then a "hazard zone" exists from Oct 17 thru Feb 8. That is 114 days.
These facts alone suggest syzygy as we close with perihelion is the major factor aside from geologic stress.
The other missed research has to do with "mindset" that absolutely closes our minds to any cycle (periodicity) which may play a part. Following the historical record it is evident that the Metonic cycle is playing a part. That cycle represents 235 lunar months or 19 years. Researchers have discarded the 18.6 year cycle but missed the Metonic cycle for checking principal quakes on segments or attached segments. Consider the segments that run parallel with the ring of fire. 1)1838 S.F. a 7.0, 1857 Ft. Tejon a 8.25, then after 5 cycles 1952 Kern County a 7.7, another cycle and 1971 San Fernando a 6.5, and finally a bit early by the Roman calendar Oct 1989 (count as 1990) Loma Prieta a 7.1. There are others, but the current segment to look at follows. Notice the segments are not always triggered, sometimes skipping several times. So look for 19, 38, 57, 76, etc. between events. So there are safe zones of about 18 years on individual segments; and each seems to have its own base year in which it may be triggered.
The lowest magnitude which appears to follow this phenomenon shows a 6.4 at San Jacinto in 1899, then a 6.5 in San Jacinto in 1918, then 2 cycles later a 6.8 in San Miguel, Mexico in 1956, followed 2 cycles later in 1994 with a 6.8 at Northridge, CA. Currently this opens up the possibility of a principal quake (2013)anywhere on that "segment/connecting segments" running parallel to the ring of fire. Near Northridge the area is highly stressed and population density is high. The USGS has totally dismissed this information "in writting" via snail mail to me. So if there is a disaster down south anyone reading this (my very first post) will know; Menlo Park was alerted.