Results 31 to 40 of about 1,362,837 (282)
A Fast Evaluation of the Seismic Moment Tensor for Induced Seismicity
Bulletin of the Seismological Society of America, 2000 An original method is proposed for the evaluation of moment tensor components using time-domain calculations of low-frequency displacement amplitudes with the first-wave polarities attached. The technique is suitable for applications involving large amounts of data that require a fast response time, such as those encountered in the analysis of induced ...
Trifu, C-I, Angus, DAC, Shumila, V
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On the full-waveform inversion of seismic moment tensors
International Journal of Solids and Structures, 2020 In this work, we propose a full-waveform technique for the spatial reconstruction and characterization of (micro-) seismic events via joint source location and moment tensor inversion. The approach is formulated in the frequency domain, and it allows for the simultaneous inversion of multiple point-like events.
Amad, Alan A. S. +2 more
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Short-term seismic crustal deformation of Iran
Annals of Geophysics, 2014 In this paper the short-term seismic deformation of Iran is determined by the earthquake moment tensor summation. The study areas include the Alborz, Kopeh-Dagh, eastern Iran, Makran and Zagros orogenic belts.
Shoja Ansari, Ahmad Zamani
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Anomalous stress diffusion in earthquake triggering: Correlation length, time dependence, and directionality [PDF]
, 2003 It has been recently suggested that moderate and large earthquakes can be triggered by similarly sized events at very long range. Here we study the main characteristics of earthquake triggering by determining its correlation length, time dependence, and ...
Ian G. Main +3 more
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Combining experimental volcanology, petrology and geophysical monitoring techniques [PDF]
, 2012 In general, an understanding of the complex processes acting before and during volcanic eruptions is approached from various different sides, e.g. laboratory experiments on fragmentation and/or bubble burst eruption mechanisms, petrological analysis of ...
Kremers, Simon
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Spectral-Element Simulations of 3-D Seismic Wave Propagation and Applications to Source and Structural Inversions [PDF]
, 2006 This thesis presents a concise introduction to the spectral-element method and its applications to the simulation of seismic wave propagation in 3-D earth models.
Liu, Qinya
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Frontiers in Earth ScienceThe northern boundary of the African plate is one of the most complex and segmented plate boundary systems worldwide, extending from the Azores Triple Junction in the Mid-Atlantic Ocean to the Gulf of Aqaba in the eastern Mediterranean.
Abdelouahab Issaadi +4 more
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Geofísica InternacionalWe present an approach to study the rock failure mechanisms due to fracture growth or activation. Our approach includes a series of numerical geomechanic simulations of an incremental rock failure (fracture growth) accounting for elastic wavefield ...
Sergey Yaskevich +2 more
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Instrumental seismicity of the Amatrice earthquake epicentral area: a review
Annals of Geophysics, 2016 This study presents a review of the instrumental seismicity of the Norcia-Amatrice area (central Italy) where a still on-going seismic sequence started on August 24th 2016 with a Mw6.0 earthquake.
Maria Grazia Ciaccio
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Cluster analysis of seismic moment tensor orientations [PDF]
Geophysical Journal International, 1993 SUMMARY This paper demonstrates that well-known methods of cluster analysis and multivariate data analysis are useful for geodynamic interpretation of seismic moment tensors. To use these methods, moment tensors are expressed as vectors in a 6-D space. These are vectors in a rigorous sense, rather than an arbitrary set of ordered numbers, because a dot
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