منابع مشابه
Neural Network Based Electric Field Pattern Recognition for Earthquake Prediction
This study concerns monopolar electric field measurement (MEFM) which is assumed to be related to change in fault stress and evaluation of patterns shaped by acquired data from different locations. Patterns are constructed at a central computer that receives on line data packages from 11 stations through FTP over the internet in Marmara Region (northwestern Turkey). Probable precursory patterns...
متن کاملElectric Signals & Electric Fish
Philip K. Stoddard Department of Biological Sciences Florida International University Miami, Florida, 33199, USA Synopsis Electric sense (i.e. the ability to detect low-voltage electrical impulses from other individuals) is found in most primitive fish orders, a few derived teleost fish, some aquatic amphibians, the platypus and the echidna. Electric signals (i.e. self-generated electrical sign...
متن کاملPossible relationship between Seismic Electric Signals (SES) lead time and earthquake stress drop
Stress drop values for fourteen large earthquakes with M(W)> or =5.4 which occurred in Greece during the period 1983-2007 are available. All these earthquakes were preceded by Seismic Electric Signals (SES). An attempt has been made to investigate possible correlation between their stress drop values and the corresponding SES lead times. For the stress drop, we considered the Brune stress drop,...
متن کاملPre-earthquake signals – Part I: Deviatoric stresses turn rocks into a source of electric currents
Earthquakes are feared because they often strike so suddenly. Yet, there are innumerable reports of preearthquake signals. Widespread disagreement exists in the geoscience community how these signals can be generated in the Earth’s crust and whether they are early warning signs, related to the build-up of tectonic stresses before major seismic events. Progress in understanding and eventually us...
متن کاملRethinking Earthquake Prediction
We re-examine and summarize what is now possible in predicting earthquakes, what might be accomplished (and hence might be possible in the next few decades) and what types of predictions appear to be inherently impossible based on our understanding of earthquakes as complex phenomena. We take predictions to involve a variety of time scales from seconds to a few decades. Earthquake warnings and ...
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ژورنال
عنوان ژورنال: Nature
سال: 1986
ISSN: 0028-0836,1476-4687
DOI: 10.1038/322120a0