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Characteristics of Earthquake Ground Motion on the Seafloor
Journal of Earthquake Engineering, 2015The differences between onshore and offshore ground motions were studied based on the records from the K-net and SEMS. The horizontal response spectrum and vertical-to-horizontal response spectral ratio for offshore and adjacent onshore ground motions were analyzed.
Hong-Nan Li +2 more
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Annual Review of Earth and Planetary Sciences, 1988
In this review, we discuss some of the many phenomena that can determine the nature of strong ground motion. Some of these phenomena have been inferred from the study of existing ground-motion records, and others are inferred from theoretical models of earthquake sources and wave propagation.
Heaton, Thomas H., Hartzell, Stephen H.
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In this review, we discuss some of the many phenomena that can determine the nature of strong ground motion. Some of these phenomena have been inferred from the study of existing ground-motion records, and others are inferred from theoretical models of earthquake sources and wave propagation.
Heaton, Thomas H., Hartzell, Stephen H.
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2021
In Sect. 1.1, basic concepts and terms in “ground motion seismology” are defined. In Sect. 1.2, the fundamentals of “elastodynamics” are explained since “seismology” is built on a foundation of elastodynamics. The “equation of motion” and “wave equation” are then obtained for ground motion, and their nature as seismic waves with attenuation are ...
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In Sect. 1.1, basic concepts and terms in “ground motion seismology” are defined. In Sect. 1.2, the fundamentals of “elastodynamics” are explained since “seismology” is built on a foundation of elastodynamics. The “equation of motion” and “wave equation” are then obtained for ground motion, and their nature as seismic waves with attenuation are ...
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New Scientist, 2012
The effect of an earthquake on people and cities depends on more than magnitude alone: the Earth's crust can amplify or dampen the severity of ...
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The effect of an earthquake on people and cities depends on more than magnitude alone: the Earth's crust can amplify or dampen the severity of ...
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The Motion of the Ground in Earthquakes
Scientific American, 1977The slippage along a fault that produces an earthquake radiates seismic waves; the manner in which these waves shake the ground bears on the design of buildings and other structures in the earthquake zones. Since seismic waves span such a broad spectrum of period and amplitude, many different kinds of instruments and experimental techniques are needed ...
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Earthquakes, Strong-Ground Motion
2011Earthquake ground motion is a natural phenomenon associ- ated with a sudden release of energy due to a fault rupture. Strong-motion seismology deals with seismic waves radiated by large earthquakes. More precisely, it is concerned with measurement, interpretation and prediction of strong shaking generated by damaging earthquakes.
PANZA, GIULIANO +3 more
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Development of the portable ground motion simulator of an earthquake
2013 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2013In recent decades, the devastating earthquakes, which can damage a lot of houses and buildings, have frequently happened. To slow down or prevent the disastrous damages of the earthquake, the various technologies have been required. Of these technologies, the ground motion simulator of the earthquake can be used to alert people to the dangers of the ...
Se-gon Roh +8 more
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A Multiway Model for Predicting Earthquake Ground Motion
2013 14th ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing, 2013This paper develops a novel supervised method for predicting earthquake ground motions in the wavelet domain. The training input is a set of seismological predictors related to seismic source, path and local site conditions, and the training output consists of the weights from a multiway analysis of ground motions.
Yang Bai +3 more
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Ground Motions for Future Earthquakes
2020The time, location, and size of future earthquakes are uncertain. The ground motions produced by earthquakes of known magnitude and distance are also uncertain. This chapter discusses the uncertainty in future ground motions and the “acceptable” level of risk in seismic design.
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Earthquake, Ground Motion, and Tsunamis
2016This chapter explains the roles of seismology and earthquake engineering for earthquake-resistant design of nuclear facilities. It also describes the various sources of earthquakes and the types of active faults. The propagation characteristics of S-waves among four kinds of seismic waves, and the reflection and transmission of S-waves at soil layer ...
Masanori Hamada, Michiya Kuno
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