Results 131 to 140 of about 9,577 (155)

Earthquake hypocenter location using genetic algorithms

Bulletin of the Seismological Society of America, 1993
Abstract A new method for hypocenter location is proposed introducing some recent developments in global optimization techniques. The approach is based on the use of genetic algorithms to minimize some misfit criteria of the data. The method does not use derivative information and therefore does not require the calculation of partial ...
Malcolm Sambridge, Kerry Gallagher
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Fasthypo -- A Hypocenter Location Program

Seismological Research Letters, 1979
A simple, understandable FORTRAN computer program for the location of hypocenters of local and regional earthquakes is presented. The program is designed for interactive timesharing use and offers the ability to locate earthquakes quickly, obviating the need of punching data cards and submitting them to a central computer facility.
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A Digital Hypocenter Catalog for the International Seismological Summary

Seismological Research Letters, 2005
A reliable catalog of earthquake locations and magnitudes spanning long periods of time is a fundamental requirement for a wide variety of seismological studies, including seismotectonics, Earth structure, and seismic hazard. On a global scale, the most comprehensive source of earthquake locations, phase data, and magnitudes is the Bulletin of the ...
Villaseñor, A., Engdahl, E.R.
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A semi-empirical analysis of hypocenter mislocations

Tectonophysics, 1989
Abstract Daily experience in locating man-made seismic events shows that small travel-time residuals and small standard errors do not necessarily guarantee accurate hypocenter solutions. Experience also shows that, in many cases, hypocenter error estimates which are based on the assumption that the time residuals are randomly distributed may yield ...
A. Shapira, A. Du Plessis
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Refined hypocenters and accurate reliability estimates

Bulletin of the Seismological Society of America, 1975
Abstract A new method of correcting station arrival times for systematic source and station effects has been developed. The method yields source-region/station time (SRST) corrections which have a simple spatial variation and which are valid, in terms of yielding accurate focal depths and relative epicenters, over large areas. The method
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Hypocenter Locations in Finite-Source Rupture Models

Bulletin of the Seismological Society of America, 2005
We use a database of more than 80 finite-source rupture models for more than 50 earthquakes ( M w 4.1–8.1) with different faulting styles occurring in both tectonic and subduction environments to analyze the location of the hypocenter within the fault and to consider the correlation between hypocenter location and regions of large slip.
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Hypocenter-velocity structure coupling in local earthquake tomography

Physics of the Earth and Planetary Interiors, 1992
Abstract Local earthquake tomography involves the use of seismic-wave arrival times from earthquake sources with uncertain locations for the inference of three-dimensional variations in seismic velocity. Formally, this inverse problem contains explicit coupling between the earthquake hypocenters and the velocity structure.
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Joint Hypocenter Determination along the Gulf of Aqaba

Proceedings, 2013
A total number of 100 earthquakes recorded by more than 14 stations from Egypt and Saudi Arabia Seismic Networks around the Gulf of Aqaba were relocated and the seismic stations correction for P-wave is estimated using joint hypocenter determination method.
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Hypocenter

2022
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Stereoscopic Illustration of Hypocenter Distribution

Zisin (Journal of the Seismological Society of Japan. 2nd ser.), 1970
Keichi KASAHARA, Masayo HIRAI
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