Diagnosing Time Periods of Increased Probability of Large Earthquake Occurrence in the Himalayan Seismic Belt Using the CN Algorithm

2013 ◽  
pp. 25-30
Author(s):  
S.C. Bhatia ◽  
S. V. Chalam ◽  
V. K. Gaur ◽  
L. Subedi ◽  
I. A. Vorobyeva ◽  
...  
Keyword(s):  
Large Earthquake ◽  
Earthquake Occurrence ◽  
Seismic Belt ◽  
Cn Algorithm ◽  
Time Periods

scholarly journals On the Correlation between Earthquake Occurrence and Disturbances in the Path of the Rotation Pole

1972 ◽  
Vol 48 ◽  
pp. 215-220 ◽  
Author(s):  
Michael A. Chinnery ◽  
Fred J. Wells
Keyword(s):  
Observational Studies ◽  
Polar Motion ◽  
Theoretical Calculations ◽  
Large Earthquake ◽  
Chandler Wobble ◽  
Earthquake Occurrence ◽  
Rotation Pole

The hypothesis that earthquakes may be the principal excitation of the Chandler motion of the rotation pole is examined in the light of recent theoretical and observational developments. There is some doubt about the amount of excitation by a large earthquake necessary to maintain the Chandler Wobble, but it appears to be about 10 ft. Theoretical calculations for the Alaskan Earthquake (M = 8½) give available excitations in the range 1–5 ft, but there are considerable uncertainties in these calculations. Earthquakes may be able to provide all of the required excitation, or only a small portion (10% or less). The problem is confused by observational studies, which show differences between various sets of data on polar motion which seem to be larger than the expected error in each set. The earthquake hypothesis, though reasonable, is still very much open to debate.

scholarly journals Types of strong earthquake precursor behavior obtained from world and regional catalogs of earthquakes

2021 ◽  
Vol 946 (1) ◽  
pp. 012008
Author(s):  
M V Rodkin ◽  
M Yu Andreeva ◽  
E V Liperovskaya
Keyword(s):  
Power Law ◽  
Strong Earthquake ◽  
World Wide ◽  
Physical Mechanism ◽  
Physical Nature ◽  
Large Earthquake ◽  
Earthquake Precursor ◽  
Specific Character ◽  
Earthquake Occurrence

Abstract Typical features of seismicity inherent to the period prior to the strong earthquake occurrence are examined using the regional and world-wide earthquake catalogs by the method of construction of the Generalized vicinity of a large earthquake (GVLE). These features are foreshock power-law cascade, the weak long-term background increase in seismic activity, and the definite clustering of the main events. Worth to note, that all these features appear to indicate the loss of a stability of a system, without any reference to the physical mechanism of development of the instability. Thus, these features are expected to occur in connection with the bifurcation points in systems of other physical nature, examples of such behavior are given. Besides, a tendency of a decrease in earthquakes depth in the close GVLE vicinity was found. This precursor feature has a specific character and evidences in favor of a fluid involvement in the mechanism of earthquake occurrence.

Large Earthquake Occurrence Estimation Based on Radial Basis Function Neural Networks

2014 ◽  
Vol 52 (9) ◽  
pp. 5443-5453 ◽  
Author(s):  
Alex Alexandridis ◽  
Eva Chondrodima ◽  
Evangelos Efthimiou ◽  
Giorgos Papadakis ◽  
Filippos Vallianatos ◽  
...  
Keyword(s):  
Neural Networks ◽  
Radial Basis Function ◽  
Basis Function ◽  
Large Earthquake ◽  
Earthquake Occurrence ◽  
Radial Basis
Sign in / Sign up

Export Citation Format

Share Document