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Books > Earth & environment > Earth sciences > Structure & properties of the Earth > Volcanology & seismology
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Earthquake Geology (Hardcover)
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Earthquake Geology (Hardcover)
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An earthquake is always an unexpected phenomenon. Modern science is
not able to predict the time or the place or the earthquake
strength. The problem of locating the focus of a starting
earthquake has not even been set due to the poor level of
understanding the processes preceding its start. At present the
main earthquake hypothesis is the "explosive" relaxation of the
high elastic stresses accumulated in the lithosphere. Understanding
a fault's slip behavior, as well as its length and connectivity, is
important for constraining the magnitude range and frequency of
earthquakes that a particular fault is likely to produce. This
book, Earthquake Geology, presents contributions from researchers
of different countries in the world that point out the study of
seismoinduced phenomena associated with recent and historical
earthquakes. First chapter aims to estimate the response of
freestanding full-scale equipment to 2% in 50 years hazard level
motions, and the results are used to generate ready-to-use
fragility curves and second chapter emphasizes on earthquake
forecast with the seismic sequence hierarchization method. Third
chapter encompasses the micro-earthquake monitoring with sparsely
sampled data. In fourth chapter, we analyze in detail the features
of the experimental weakening curves and provide a general fit
which is purely empirical, with the synthesis of a large number of
experiments and their result in terms of frictional breakdown
energy Gf. Fifth chapter presents how to locate the focus of a
starting earthquake and sixth chapter presents research on
earthquake radon anomalies. Seventh chapter highlights on seismic
sequence structure and earthquakes triggering patterns and eighth
chapter emphasizes on predicting earthquakes with microsequences
and reversed phase repetitive patterns. Application of
commensurability in earthquake prediction is discussed in ninth
chapter and tenth chapter gives out the co-planarity and symmetry
theory of earthquake occurrence. Eleventh chapter presents a
numerical investigation of earthquake shielding with seismic
crystals and twelfth chapter presents an evaluation of strain
accumulation in global subduction zones from seismicity data.
Thirteenth chapter reveals on modification in atmospheric
refractivity and GPS based TEC as earthquake precursors, and
fourteenth chapter proposes a seismic-acoustic system for
monitoring the earthquake origin process. The aim of fifteenth
chapter is to calculate hydrodynamical phenomena: Earth's tidal and
precursory variations in level of liquid in wells (boreholes) using
identical systems of equations and to clarify data on distribution
of hydrodynamical precursors on the Earth's surface. The objective
of sixteenth chapter is to provide a wavelet transform method to
detect P and S-phases in three component seismic data. In
seventeenth chapter, basic models and standard mechanisms of
earthquakes are briefly considered, results of processing of
information on the earthquakes in the context of global spatial
anisotropy caused by the existence of the vector Ag, are presented,
and an analysis of them is given. Eighteenth chapter concentrates
more on the actual relationship between earthquakes and solar
activity and treats the effects causing the correlation only in the
aspect of geomagnetic field strength variations. Nineteenth chapter
presents a study on correlation of tidal forces with global great
earthquakes, and an analysis and verification of forecasting the
locations of future large earthquakes is given in last chapter.
Forecasts of the locations of future major earthquakes play an
important role in earthquake preparedness and determining
earthquake insurance costs. Many such forecasts have been carried
out with examples in this chapter.
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