Prior various seismic events stress accumulation tajkes place .Its symptomatic siganals are displayed in the tectin region by subsurface condison varaion as in Geology Geomorphology ,Thermal emissivity , and gravitydata. As well as there are EM signals displaying anomalous variation.But do we have 500 or more EM data available deciphering past historical features and associated tectonic stature in the region of sesimicity?
There are many parameters that come into play, for example I observe Radon emissions but I haven't found great correspondences with future events. Certainly the geological survey of fractures, satellite movements and the local ssmicity trend helps in the interpretation
We must look for the signals necessarily emitted by a tectonic structure that is going to deliver a seismic shock, even if the focus areas are selected and activated by a possible extraterrestrial civilization. So, what is the fundamental phenomenon activated before the production of the shock and how long time before? I was surprised to find in the epicentral area of Vrancea-Romania that a 4.7R earthquake changed the resistivity section, tens of kilometers deep. Until, then it was relatively constant. How would it look before an M7.5? On the other hand, the sudden variations of the geomagnetic field (SSC) act in the same deep, being able to produce displacements in the outbreak area. And so on...
Dear Umesh Verma ,
In the text above (post of Valentin ( Valentin Constantin Furnica )), everything you need to be able to predict an earthquake is included. But if you want to know more, you'll have to get us interested in giving you an answer.
You should have a look at the following links:
https://www.researchgate.net/post/Exists-the-next-situation-when-an-outsider-researcher-who-has-achieved-a-very-encouraging-result-in-earthquake-forecasting-is-not-supported
and:
https://www.researchgate.net/post/How-do-You-see-the-Earthquakes-Prediction-Forecast-or-Random-events
Regards,
Laszlo
Understanding the driving forces of tectonic activity is the only way to predict tectonic activity. In my article 'The driving forces of tectonic activity ' on RG a hypothesis is developed based on the axis tilt of the earth.
Dear Doctor
Go To
Seismotectonics of the Aegean Region
- April 1986
- Tectonophysics 124(1-2):67-84
- DOI: 10.1016/0040-1951(86)90138-1
- Gerassimos A. Papadopoulos, Despina Kondopoulou, G.-A. Leventakis, Spyros Pavlides
"Fault plane solutions, neotectonic field observations, and in-situ stress measurements have been used to determine the stress field associated with the active deformation of the lithosphere in the Aegean and surrounding regions. A stress gradient and a zonal pattern of different tectonism away from the trench axis has been postulated. Pure thrust faulting occurs in the fore-arc side while the back-arc side is mainly dominated by almost N-S extensional tectonics. A narrow belt of strike-slip faults with predominantly thrust component separates these tectonic zones. This belt seems to represent a transition from the thrust-type faults to normal faults. Fault plane solutions of the whole region in question indicate that both the large and small magnitude shocks are caused by the same regional stress-field.A body of 33 focal mechanisms indicates that the intermediate depth shocks along the sinking Mediterranean slab are associated with thrust-type fracturing. Orientation of kinematic axes favours the suggestion that shear zones within the descending slab cause these shocks. The active crustal shortening along the Hellenic consuming boundary and the sinking of the Mediterranean lithosphère beneath the South Aegean area explain satisfactorily the seismotectonic features of the fore-arc and the southern back-arc sides. On the contrary, geophysical evidence concerning the Cenozoic geodynamic evolution of the Aegean is needed to interpret features of the north back-arc area."
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