Geophysical Variables and Behavior: XXI. Geomagnetic Variation as Possible Enhancement Stimuli for UFO Reports Preceding Earthtremors

1985 ◽  
Vol 60 (1) ◽  
pp. 37-38 ◽  
Author(s):  
M. A. Persinger
Keyword(s):  
Tectonic Stress ◽  
Zero Order ◽  
Stress And Strain ◽  
Geomagnetic Variation ◽  
Shared Variance ◽  
And Behavior ◽  
Central Usa ◽  
New Madrid

The contribution of geomagnetic variation to the occurrence of UFORs (reports of UFOs) within the New Madrid States during the 6-mo. increments before increases in the numbers of IV-V or less intensity earthquakes within the central USA was determined. Although statistically significant zero-order correlations existed between measures of earthquakes, UFORs and geomagnetic variability, the association between the latter two deteriorated markedly when their shared variance with earthquakes was held constant. These outcomes are compatible with the hypothesis that geomagnetic variability (or phenomena associated with it) may enhance UFORs but only if tectonic stress and strain are increasing within the region.

Transient Geophysical Bases for Ostensible Ufo-Related Phenomena and Associated Verbal Behavior?

1976 ◽  
Vol 43 (1) ◽  
pp. 215-221 ◽  
Author(s):  
Michael A. Persinger
Keyword(s):  
Verbal Behavior ◽  
Tectonic Stress ◽  
Geophysical Processes ◽  
And Behavior ◽  
Fine Localization

Repeated relationships between certain spatial regions and the report of ostensible UFO-like luminosities have suggested the role of as yet unspecified geophysical processes in the production of these events. Since intense, diffuse or spheroid light displays have been reported for centuries either before or during earthquakes and seem to involve piezoelectric-like effects, a model was developed to suggest that similar ionization/luminosities could occur in areas of tectonic stress, without gross seismicity, by the transient, extremely fine localization of otherwise normal geophysical forces. By using known principles of geophysics, electromagnetism, and behavior, predictions from the model can be generated to accommodate the apparent effects of some UFO-related episodes upon non-living and living electromagnetic systems. The testability of the model is emphasized.

Geophysical Variables and Behavior: XX. Weekly Numbers of Mining Accidents and the Weather Matrix: The Importance of Geomagnetic Variation and Barometric Pressure

1984 ◽  
Vol 59 (3) ◽  
pp. 719-722 ◽  
Author(s):  
Michael A. Persinger ◽  
Michael Nolan
Keyword(s):  
Multivariate Analyses ◽  
Barometric Pressure ◽  
First Aid ◽  
Geomagnetic Variation ◽  
Geomagnetic Variations ◽  
Sunshine Hours ◽  
One Year ◽  
Pressure Changes ◽  
And Behavior ◽  
The Relationship

The magnitudes of the relationship between the conditions of the weekly weather matrix and the numbers of mining accidents during a one-year period were determined by multivariate analyses. Measures of means and variations in temperature, humidity, sunshine hours, windspeed, precipitation, barometric pressure, and geomagnetic activity per week were selected. The analyses were dominated by single variables. Whereas medical aid accidents tended to increase as the barometric pressure decreased, first aid accidents increased as the geomagnetic variation increased. The barometric pressure changes accommodated 16% of the variance in the numbers of medical accidents while geomagnetic variations accommodated 23% of the variance in first-aid accidents.

Geophysical Variables and Behavior: XXXV. Positive Correlations between Numbers of UFO Reports and Earthquake Activity in Sweden

1986 ◽  
Vol 63 (2) ◽  
pp. 921-922
Author(s):  
Dan Mattsson ◽  
M. A. Persinger
Keyword(s):  
Multiple Regression ◽  
Seismic Activity ◽  
Washington State ◽  
General Relationship ◽  
Earthquake Activity ◽  
Regression Analyses ◽  
Temporal Relationships ◽  
Positive Correlations ◽  
And Behavior ◽  
Central Usa

The numbers of major UFO reports per 6-mo. increment and the numbers of earthquakes per 6-mo. increment within Sweden were calculated for the years 1963 through 1977. Symmetrical lag/lead multiple regression analyses gave a positive intermediate strength correlation (0.59) between the numbers of earthquakes per increment and the numbers of UFO reports (UFORs) during the previous increment only. These results are similar to UFOR-seismic temporal relationships that have been found in the central USA, Utah, Washington State, and Manitoba. These patterns strongly suggest a general relationship between reports of luminous phenomena, frequently labelled as UFOs, and consequent seismic activity.

Focal mechanism inversion in the Giudicarie–Lessini seismotectonic region (Southern Alps, Italy): Insights on tectonic stress and strain

2008 ◽  
Vol 460 (1-4) ◽  
pp. 106-115 ◽  
Author(s):  
Alfio Viganò ◽  
Gianni Bressan ◽  
Giorgio Ranalli ◽  
Silvana Martin
Keyword(s):  
Focal Mechanism ◽  
Tectonic Stress ◽  
Southern Alps ◽  
Stress And Strain

Tectonic stress within the New Madrid seismic zone

1996 ◽  
Vol 101 (B3) ◽  
pp. 5445-5458 ◽  
Author(s):  
Jeffrey P. Grana ◽  
Randall M. Richardson
Keyword(s):  
Tectonic Stress ◽  
New Madrid Seismic Zone ◽  
Seismic Zone ◽  
New Madrid

Surface deformation associated with fractures near the 2019 Ridgecrest earthquake sequence

Science ◽  
2020 ◽  
Vol 370 (6516) ◽  
pp. 605-608
Author(s):  
Xiaohua Xu ◽  
David T. Sandwell ◽  
Lauren A. Ward ◽  
Chris W. D. Milliner ◽  
Bridget R. Smith-Konter ◽  
...  
Keyword(s):  
Surface Deformation ◽  
Earthquake Hazard ◽  
Tectonic Stress ◽  
Earthquake Sequence ◽  
Hazard Models ◽  
Linear Strain ◽  
Major Implication ◽  
Satellite Radar ◽  
And Behavior ◽  
Frictional Slip

Contemporary earthquake hazard models hinge on an understanding of how strain is distributed in the crust and the ability to precisely detect millimeter-scale deformation over broad regions of active faulting. Satellite radar observations revealed hundreds of previously unmapped linear strain concentrations (or fractures) surrounding the 2019 Ridgecrest earthquake sequence. We documented and analyzed displacements and widths of 169 of these fractures. Although most fractures are displaced in the direction of the prevailing tectonic stress (prograde), a large number of them are displaced in the opposite (retrograde) direction. We developed a model to explain the existence and behavior of these displacements. A major implication is that much of the prograde tectonic strain is accommodated by frictional slip on many preexisting faults.

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