Results 11 to 20 of about 14,841 (265)
Ambiguity of the Moment Tensor [PDF]
Bulletin of the Seismological Society of America, 2005 An earthquake on a fault separating two dissimilar materials does not have a well-defined moment density tensor. We present a complete characterization of this bimaterial ambiguity in the general case of slip on a fault in an anisotropic medium. The ambiguity can be eliminated by utilizing a potency density rather than a moment density representation ...
Ampuero, Jean-Paul, Dahlen, F. A.
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Frontiers in Earth Science, 2021 Underground exploitation of georesources can be highly correlated with induced seismic activity. In order to reduce the risk and improve the mining operations safety, the mining activity is monitored by a dedicated seismic network.
Alicja Caputa +2 more
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Analytical models of volcanic ellipsoidal expansion sources
Annals of Geophysics, 2013 Modeling non-double-couple earthquakes and surficial deformation in volcanic and geothermal areas usually involves expansion sources. Given an ensemble of ellipsoidal or tensile expansion sources and double-couple ones, it is straightforward to obtain ...
Antonella Amoruso, Luca Crescentini
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Annals of Geophysics, 2008 The seismic sequence that hit Umbria and Marche during 1997 and 1998 was particularly significant because it dramatically marked the evolution of analysis tools and the development of our geophysical knowledge of the region. Since September 1997, we have
A. Morelli, S. Pondrelli
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On the documentation, independence, and stability of widely used seismological data products
Frontiers in Earth Science, 2022 Earthquake scientists have traditionally relied on relatively small data sets recorded on small numbers of instruments. With advances in both instrumentation and computational resources, the big-data era, including an established norm of open data ...
Boris Rösler +3 more
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Terrestrial, Atmospheric and Oceanic Sciences, 2010 Moment tensor inversion is a routine procedure to obtain information on an earthquake source for moment magnitude and focal mechanism. However, the inversion quality is usually controlled by factors such as knowledge of an earthquake location and the ...
Shiann-Jong Lee +3 more
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Investigating Factors Influencing Moment Tensor Inversion of Induced Seismicity in Virtual IoT
IEEE Access, 2019 The Internet of Things (IoT) for seismicity in underground mine consists of a combination of sensor network hardware and software, which allows the collection of seismic data and data processing for basic event parameters.
Feiyue Wang +4 more
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SciPost Physics, 2022 We consistently couple simple continuum field theories with fracton excitations to curved spacetime backgrounds. We consider homogeneous and isotropic fracton field theories, with a conserved $U(1)$ charge and dipole moment.
Akash Jain, Kristan Jensen
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Monte Carlo approximate tensor moment simulations [PDF]
Numerical Linear Algebra with Applications, 2014 SummaryAn algorithm to generate samples with approximate first‐order, second‐order, third‐order, and fourth‐order moments is presented by extending the Cholesky matrix decomposition to a Cholesky tensor decomposition of an arbitrary order. The tensor decomposition of the first‐order, second‐order, third‐order, and fourth‐order objective moments ...
Juan Carlos Arismendi, Herbert Kimura
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Water inrush inoculation process in mines based on moment tensor inversion
工程科学学报, 2015 To achieve the effective monitoring of rock failure events in the mine water inrush inoculation process, a moment tensor inversion method based on digital seismology was introduced to process abnormal microseismic events monitored in Hebei Fanshan ...
CHAI Jin-fei +4 more
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