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Return To Earthquakes Storyboard Atlantic Great Rift Expansion Earthquakes all text in following panels is wrong all titles ok Outline
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North Atlantic Expansion Zone 4+ 1973-2007
This chart is virtually identical to the chart for the entire Atlantic + Arctic because most of the recorded activity is only in the North Atlantic. Since there is virtually no increase in the Artic nor the South Atlantic, most of the growth is occuring here in the North Atlantic. It is about a three-fold increase during the past 33 years since 1973.
North Atlantic Quakes
2+ Daily With Wobble 1991-2007 For this chart and all others on this web page for the Alaska area
North Atlantic Tectonic Zone: ... This plot is made from what is probably the most authoritative data series on Earth, the catalog for the Southern California Seismic Network, which was one of the first formal quake catalogs in the world. It is believed to be a near perfect record of seismic activity of Class 3+ from 1932 to the current time in a precise area which contains a major portion of the San Andreas Fault and subsidiaries. See South California Quakes/Month 1950-2000 for additional details. This plot was taken down to all quakes of Class 2+. A careful examination of the frequency of seismic events in Class 2 and over since 1932 will suggest to any observer that there is little to NO report inflation in this series. The rapid rise and fall of quake frequency, REPEATEDLY, in all magnitude classes since the early 1970's, as can be plainly seen in [Southern California Quakes 2+ Size Comparatives & Cosmic Parallels With Average Daily Frequency 1932- 2007] suggests the counts have been made consistently for all above Class 2 for at least the past several decades. Accordingly, this chart gives us an objective long vision about the long term tectonic activity of the Earth, or at least of North America. Many geophysicists will tell you that there is no apparent trend of increase in earthquake activity. Look at this data series. What do YOU think? The following chart gives it all to you in one small compressed chart of average annual figures. This chart and the remaining charts in this portion of the storyboard on earthquakes frankly destroy some of the illusions under which many geophysicists mis-think and mis-speak. |

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notes: 1. The "gap" in 1979 is a "hole" in the database, not a dearth of quakes 2. Wobble Axis waveforms begin with the daily record in 1962. Daily records do not exist prior to then, only samples of 20 per year. 3. The Wobble X and Y Axis plots are offset vertically by intent to ease the eye and give the mind an easier time at grasping the phasing connections with quakes. One is not bigger than the other and in fact, literal "size" exactness on the vertical is not important. All the importance is on the horizontal scale and the connection with the up or down phases of the waveforms. |

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