Results 11 to 20 of about 5,838,275 (236)
Normalized Radiated Seismic Energy From Laboratory Fracture Experiments on Opalinus Clayshale and Barre Granite [PDF]
Journal of Geophysical Research: Solid Earth, 2020 We evaluate the radiated seismic energy normalized by external work for hydraulic fracturing, beam bending, and uniaxial compression experiments conducted on Opalinus clayshale and Barre granite specimens. Results suggest that normalized radiated seismic
Bing Q. Li, Herbert H. Einstein
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Fluctuations, trends and scaling of the energy radiated by heterogeneous seismic sources [PDF]
Geophysical Journal International, 2006 SUMMARY Computer simulations, based on a heterogeneous seismic source model governed by the overdamped dynamics, reproduce essential aspects of seismicity, both on ‘microscopic’ (local functions, such as slip velocity), and ‘macroscopic’ (global functions, such as seismic energy) level.
Piotr Senatorski
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Real-time monitoring of seismic moment and radiated energy
, 2020 <p>Understanding the dynamics of faulting is a crucial target in earthquake source physics (Yoo et al., 2010). To study earthquake dynamics it is indeed necessary to look at the source complexity from different perspectives; in this regard, useful information is provided by the seismic moment (M0), which is a static measure of ...
Davide Scafidi +3 more
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Journal of Physics of the Earth, 1979 The energy balance of earthquake fault motions is analysed, and expressions for seismic energy and seismic efficiency are derived in terms of physical quantities at the seismic source, such as initial stress, sliding frictional stress, rupture velocity and so on.
Teruo Yamashita
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The radiated seismic energy and apparent stress of interplate and intraplate earthquakes at subduction zone environments; implications for seismic hazard estimation [PDF]
Open-File Report, 2001 The radiated seismic energies (Es) of 980 shallow subduction-zone earthquakes with magnitudes (equal or greater than) 5.8 are used to examine global patterns of energy release and apparent stress. In contrast to traditional methods which have relied upon empirical formulas, these energies are computed through direct spectral analysis of broadband ...
George L. Choy +2 more
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Stress drops and radiated seismic energies of microearthquakes in a South African gold mine [PDF]
Journal of Geophysical Research: Solid Earth, 2007 We estimate stress drops and radiated seismic energies of 20 microearthquakes (0.0 < MW < 1.3) in a South African gold mine to investigate their rupture characteristics and scaling relationships to large earthquakes. We analyze seismograms of borehole accelerometers recorded with high sampling rate (15 kHz) within 200 m of the hypocenters at the ...
Takuji Yamada +2 more
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Seismicity Rate and Radiated Energy of Earthquakes in Parts of the African Plate
Pakistan Journal of Scientific & Industrial Research Series A: Physical SciencesThe occurrence of earthquakes and radiated energy in parts of the African plate were evaluated. The data for this study were extracted from the International Seismological Centre (ISC) earthquake catalogue. The data were analysed using seismicity rate, radiated energy model and Gutenberg - Richter's relationship. The findings of the study revealed that
Abong Augustine Agwul, Atsu, J.U.
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An Application of the Energy-Moment Tensor Relation to Estimation of Seismic Energy Radiated by Point and Line Sources [PDF]
Geophysical Journal International, 1977 Summary. We derive expressions for the seismic energy radiated from point and line sources in terms of the moment tensor of the source. Using moment tensors based on previously published fault plane solutions for the 1960 Chilean earthquake, the precursor to that event, and the 1964 Alaskan earthquake, we present power spectra for various fault length,
D. W. McCowan, A. M. Dziewonski
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Estimation of dynamic rupture parameters from the radiated seismic energy and apparent stress [PDF]
Geophysical Research Letters, 2000 We propose a new procedure for estimating the critical slip weakening distance, Dc, by evaluating the spatio‐temporal distribution of the apparent stress calculated from the spatio‐temporal distribution of the slip velocity function on the fault plane obtained from a kinematic inversion of the earthquake source.
N. Pulido, K. Irikura
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Terrestrial, Atmospheric and Oceanic Sciences, 2013 A forward modeling of P-waves for the 2008 Wenchuan earthquake revealed at least seven sub-events that occurred during faulting with the largest event (i.e., the third sub-event) located at a position ~50 km northeast of the epicenter.
Ruey-Der Hwang
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