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Passive seismic imaging using microearthquakes
Geophysics, 1995Abstract We have developed a method of processing seismic signals generated by microearthquakes to image local subsurface structure beneath a recording station. This technique uses the autocorrelation of the vertically traveling earthquake signals to generate pseudoreflection seismograms that can be interpreted for subsurface ...
M. Reza Daneshvar +2 more
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Passive Seismic Marchenko Imaging
2020<p>In recent years, seismic interferometry (SI) has been widely used in passive seismic data, it allows to retrieve new seismic responses among physical receivers by cross-correlation or multidimensional deconvolution (MDD). Retrieval of reflected body waves from passive seismic data has been proved to be feasible.
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Location Uncertainties in Passive Seismic Monitoring
Proceedings, 2009In this study we shall address the effects of the receiver geometry, arrival time uncertainty and velocity model errors on location uncertainties. The effect of the velocity model error will be limited to a consideration of homogeneous media, although heterogeneity may have as profound effect on location accuracy as receiver distribution. Although many
E. Aker +3 more
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Wavefront Tomography for Passive Seismic Data
Second EAGE/PESGB Workshop on Velocities, 2019Summary We propose a workflow for velocity model building based on passive seismic data. The under-lying tomographic inversion makes use of the slopes and curvatures of the recorded wavefield and inverts for velocities, source locations and source excitation times simultaneously.
L. Diekmann +3 more
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Seismic interferometry for passive and exploration data
Proceedings of the 8th SEGJ International Symposium, 2006Exact Green’s function representations for seismic interferometry are based on the assumption that the receivers used in the correlation process are surrounded by a closed surface of sources. We investigate two situations for which this condition is not fulfilled: sources only in the subsurface, as in passive seismics, and sources only at the surface ...
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New Frontiers in Passive Seismic Monitoring
19th Congress of the Brazilian Geophysical Society - ProceedingsPassive seismic monitoring is a critical component in managing subsurface operations using seismicity as a feedback mechanism to guide operational decisions. These applications typically focus on locating events, estimating magnitudes, and characterizing ground motion to manage induced seismicity risks. In this talk, we explore advanced uses of passive
Camilla Rodrigues +2 more
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Imaging the earth with passive seismic arrays
The Leading Edge, 2003Earthquake and exploration seismology share a common foundation in elastic wave propagation. Most of what we know about earthquakes is known from the elastic waves they emit, while seismic methods in exploration are all about using scattered elastic waves to image earth structure. Seismologists have been using elastic waves to probe the earth since the
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