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On the use of a seismic sensor as a seismic source
Geophysics, 2013ABSTRACT We investigated the use of seismic sensors as small seismic sources. A voltage signal is applied to a geophone that forces the mass within the geophone to move. The movement of the mass generates a seismic wavefield that was recorded with an array of geophones operating in the conventional sense. We observed higher-frequency (
Halliday, David F. +3 more
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Seismicity, seismotectonics and seismic hazard of Italy
Engineering Geology, 2000Abstract A first generation of probabilistic seismic hazard maps of the Italian country are presented. They are based on seismogenic zoning deriving from a kinematic model of the structural tectonic units and on an earthquake catalogue with the foreshock and aftershock events filtered out. The following ground motion parameters have been investigated
ROMEO, ROBERTO, PUGLIESE A.
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Seismic Hazard and Risk Analysis
, 2021Seismic hazard and risk analyses underpin the loadings prescribed by engineering design codes, the decisions by asset owners to retrofit structures, the pricing of insurance policies, and many other activities.
J. Baker, B. Bradley, P. Stafford
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, 2021
The 1999 Chi-Chi, Taiwan, earthquake (Mw 7.6) caused damage to 49 tunnels within 60 km of the epicenter, including the collapse of three mountain tunnels, ending the traditional perception that tunnels, and especially mountain tunnels, were earthquake ...
Tai-Tien Wang, O. Kwok, Fu-Shu Jeng
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The 1999 Chi-Chi, Taiwan, earthquake (Mw 7.6) caused damage to 49 tunnels within 60 km of the epicenter, including the collapse of three mountain tunnels, ending the traditional perception that tunnels, and especially mountain tunnels, were earthquake ...
Tai-Tien Wang, O. Kwok, Fu-Shu Jeng
semanticscholar +1 more source
Deep denoising autoencoder for seismic random noise attenuation
, 2020Attenuation of seismic random noise is considered an important processing step to enhance the signal-to-noise ratio of seismic data. A new approach is proposed to attenuate random noise based on a deep-denoising autoencoder (DDAE).
Omar M. Saad, Yangkang Zhang
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A theory-guided deep-learning formulation and optimization of seismic waveform inversion
Geophysics, 2020Deep-learning techniques appear to be poised to play very important roles in our processing flows for inversion and interpretation of seismic data. The most successful seismic applications of these complex pattern-identifying networks will, presumably ...
Jian Sun +4 more
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Seismic Soundoff: The sound of seismic
The Leading Edge, 2023Paolo Dell'Aversana highlights his recent article in The Leading Edge, “An expanded idea of imaging in geophysics through multimodal data analysis.” The article explores a dual-sensory approach to understanding seismic data. This episode unlocks secret information hiding in seismic data that is waiting to be discovered.
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Bulletin of Earthquake Engineering, 2013
Although West Africa is generally an area of very low seismicity, an exception is a concentration of activity in Southern Ghana, especially near to the capital, Accra, which was heavily damaged by earthquakes in 1862 and 1939. Modern instrumental seismicity is poorly understood due to the limitations of seismic monitoring in the country. In this study,
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Although West Africa is generally an area of very low seismicity, an exception is a concentration of activity in Southern Ghana, especially near to the capital, Accra, which was heavily damaged by earthquakes in 1862 and 1939. Modern instrumental seismicity is poorly understood due to the limitations of seismic monitoring in the country. In this study,
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Distributed Acoustic Sensing Turns Fiber‐Optic Cables into Sensitive Seismic Antennas
Seismological Research Letters, 2019Distributed acoustic sensing (DAS) is a new, relatively inexpensive technology that is rapidly demonstrating its promise for recording earthquake waves and other seismic signals in a wide range of research and public safety arenas.
Z. Zhan
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