This thesis adopts the relative back-projection method to dramatically reduce “swimming” artifacts by identifying the rupture fronts in the time window of a reference station; this led to a faster and more accurate image of the rupture ...
Author: Hao Zhang
This thesis adopts the relative back-projection method to dramatically reduce “swimming” artifacts by identifying the rupture fronts in the time window of a reference station; this led to a faster and more accurate image of the rupture processes of earthquakes. Mitigating the damage caused by earthquakes is one of the primary goals of seismology, and includes saving more people’s lives by devising seismological approaches to rapidly analyze an earthquake’s rupture process. The back-projection method described in this thesis can make that a reality.
1.4a) were back-projected according to the identified P-phase. ... using
observations from the two arrays may increase the aperture and reduce artifacts,
thereby enabling imaging of the rupture processes and stabilized imaging results
Author: Ching-Hua Lo
Publisher: Springer Nature
This book collects a series of review articles summarizing the outcomes of collaborative research projects on the 1999 Chi-Chi earthquake and the 2008 Wenchuan earthquake, two of the largest and most disastrous earthquakes in Asia in the last two decades. The articles cover a broad range of aspects,including these earthquakes’ fundamental mechanisms, kinematics, and the geological and geophysical background of their fracture faults. Presenting comprehensive coverage, the book offers a valuable reference guide to these two devastating earthquakes.
... March 10, 2016, Published online March 26, 2016) Imaging Rupture Process
of the 2015 Mw 8.3 Illapel Earthquake ... shear faulting based on experimentally
inferred constitutive relation and strong motion source parameters, J. Geophys. ...
high-frequency radiation and asperity ruptures, revealed by hybrid back- projection with a non-planar fault model, Sci. ... near the Japan Trench during the
2011 Tohoku-oki earthquake revealed by a hybrid back-projection method, Earth
Author: Carla Braitenberg
This volume presents a collection of contributions that were published in "Pure and Applied Geophysics - pageoph" and which deals with the major earthquake that hit Illapel, Chile on September 16, 2015 with magnitude 8.3, and associated trans-oceanic tsunami. The subducting Nazca plate beneath the Andes caused this major earthquake, generating strong shaking, permanent deformation, free oscillations of the Earth, and tsunamis. This event occurred in the flat-angle subducting segment of the plate.The generated tsunami spread throughout the entire Pacific Ocean and was recorded by numerous coastal tide gauges and open-ocean DART stations. All articles give an up-to-date account of research in one of the most active seismic zones worldwide. An introductory article by Kenji Satake rounds this collection off.
This is the back-projection method, an alternative way to image seismic sources,
which we will discuss in Section ... Rapid solutions are published via the Internet
from several groups immediately after large earthquakes, usually within one or ...
If there are enough data, the relative significance of the assumptions is low, but
the data are often limited and the ... Section 4.09.3.4 reviews the back-projection method, a recently developed method to reveal the spatiotemporal rupture process.
Treatise on Geophysics, Second Edition, is a comprehensive and in-depth study of the physics of the Earth beyond what any geophysics text has provided previously. Thoroughly revised and updated, it provides fundamental and state-of-the-art discussion of all aspects of geophysics. A highlight of the second edition is a new volume on Near Surface Geophysics that discusses the role of geophysics in the exploitation and conservation of natural resources and the assessment of degradation of natural systems by pollution. Additional features include new material in the Planets and Moon, Mantle Dynamics, Core Dynamics, Crustal and Lithosphere Dynamics, Evolution of the Earth, and Geodesy volumes. New material is also presented on the uses of Earth gravity measurements. This title is essential for professionals, researchers, professors, and advanced undergraduate and graduate students in the fields of Geophysics and Earth system science. Comprehensive and detailed coverage of all aspects of geophysics Fundamental and state-of-the-art discussions of all research topics Integration of topics into a coherent whole
... risk communication purposes , in terms of significant differences in the relative
populations experiencing high intensity levels ... In this study , we made an effort
towards imaging the 2010 M7.0 Haiti earthquake using multiple seismic array ...
We applied back projection methods based ... the timely characterization of the rupture process of large earthquakes in the Caribbean , including the future ruptures ...
O -0.3 -0.2 -0.1 0.1 0.2 0.3 HORIZONTAL SLOWNESSSX (sec/km) back- projection mapping in which seismograms are stacked for each possible source
location to obtain ... provide an estimate of the relative intensity of radiated
seismic energy at all source locations and times. The source imaging procedure
has been well examined in our previous analysis for earthquake relocation (
Huang 2008). ... Temporal rupture behavior of this event was revealed using the
Ho-Liu, P., J.-P. Mon , and H. Kanamori, Comparison of iterative back-projection
inversion and eneralized inversion ... Lienert, B.R., and M.H. relation i------. ... Liu,
H.-P. Effect of source on seismic using the pulse-broad method, Geophysics, 3,
1520-1526, 1988. ... Blair, J. M., and J. Korringa, Aberration-free image for SH
reflection in transversely isotropic media, Geophysics, 52, 1563-1565, 1987. ...
Nabelek, Rupture process of the Macquarie ridge earthquake of May 23, 1989, ,
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