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Simulpal

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Journal Article
Journal: GSA Bulletin
Published: 01 July 1972
GSA Bulletin (1972) 83 (7): 2201–2204.
Journal Article
Journal: GSA Bulletin
Published: 01 July 1972
GSA Bulletin (1972) 83 (7): 2205–2209.
Journal Article
Journal: GSA Bulletin
Published: 01 August 1971
GSA Bulletin (1971) 82 (8): 2251–2260.
...D MUKHOPADHYAY; S SENGUPTA Abstract Three phases of deformation are recognized in the Simulpal area. The regional schistosity which was hitherto regarded as the earliest deformation structure in Singhbhum is shown to be a second generation structure preceded by a phase of isoclinal folding...
Image
(a) Map and (b) west–east cross section showing the comparison between 3D N...
Published: 01 August 2013
Figure 6. (a) Map and (b) west–east cross section showing the comparison between 3D NLLoc (gray circles) and 3D SimulPS (white diamonds) locations for 7 synthetic events. In the central and right graphs, the differences in the hypocentral coordinates between 3D NLLoc (black squares) and 3D
Image
Differences in (a) depth, (b) latitude, (c) longitude, (d) rms, and (e) GAP...
Published: 01 August 2013
Figure 5. Differences in (a) depth, (b) latitude, (c) longitude, (d) rms, and (e) GAP between 1D Hypoellipse (black histograms) and 3D SimulPS (gray histograms) versus 3D NLLoc locations, respectively.
Image
(a) Epicentral map and west–east cross section of events located using Hypo...
Published: 01 August 2013
Figure 3. (a) Epicentral map and west–east cross section of events located using Hypoellipse code and the 1D model. (b) Epicentral map and west–east cross section of events located by using SimulPS code and 3D velocity model.
Journal Article
Published: 01 August 2013
Bulletin of the Seismological Society of America (2013) 103 (4): 2447–2459.
...Figure 6. (a) Map and (b) west–east cross section showing the comparison between 3D NLLoc (gray circles) and 3D SimulPS (white diamonds) locations for 7 synthetic events. In the central and right graphs, the differences in the hypocentral coordinates between 3D NLLoc (black squares) and 3D...
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Image
Localization with the <span class="search-highlight">SimulPS</span> code using the homogeneous isotropic model ( ...
Published: 28 September 2009
Figure 4. Localization with the SimulPS code using the homogeneous isotropic model ( V P = 6080 m / s and V S = 3510 m / s ). Artifacts for the deep events are observed because the initial event depth was chosen to be 5 km (see text for details).
Journal Article
Journal: Geophysics
Published: 28 September 2009
Geophysics (2009) 74 (5): WB55–WB61.
...Figure 4. Localization with the SimulPS code using the homogeneous isotropic model ( V P = 6080 m / s and V S = 3510 m / s ). Artifacts for the deep events are observed because the initial event depth was chosen to be 5 km (see text for details). ...
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Journal Article
Published: 01 June 1999
Bulletin of the Seismological Society of America (1999) 89 (3): 796–810.
... . Evans J. R. Eberhart-Phillips D. Thurber C. H. (1994) . User's manual for SIMULPS 12 for imaging Vp and Vp/Vs: A derivative of the “Thurber” tomographic...
Journal Article
Published: 25 May 2010
Geological Magazine (2010) 147 (6): 910–918.
.... Mukhopadhyay D. & Sengupta S. 1971 . Structural geometry and time relation of metamorphic recrystallisation to deformation in the Precambrian rocks near Simulpal, Eastern India . Geological Society of America Bulletin 82 , 2251 –60. Mukhopadhyay D. , Ghosh M...
Journal Article
Journal: The Leading Edge
Published: 01 March 2012
The Leading Edge (2012) 31 (3): 338–345.
... the events, thus the events can be relocated more accurately. The process is iterated until the difference between the measured and calculated traveltimes is at an acceptable level. The SIMULPS local earthquake tomography code was developed based on Thurber's damped-least squares, full matrix inversion...
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Journal Article
Published: 17 July 2019
Seismological Research Letters (2019) 90 (5): 1994–2004.
... SimulPS by Evans et al. (1994) for location of earthquakes occurring in broader areas. Details on methodological aspects of Bayloc can be found in the previously quoted papers. The 2018 event offers the opportunity to explore the tectonic environment of the 1905 earthquake source with the support...
FIGURES | View All (6)
Image
(a) Map of the seismic stations used for hypocenter location of the earthqu...
Published: 17 July 2019
by the SimulPS standard linearized method by Evans et al. (1994) with the same seismic velocity model used for hypocenter location of the 2018 earthquake (see the Data, Analysis, and Results section). (b) Epicenter map obtained by location of the earthquakes and indication of the profiles AA′ and BB′ used
Journal Article
Journal: Interpretation
Published: 25 June 2015
Interpretation (2015) 3 (3): T155–T167.
... with the uncertainty derived from the resolution of the velocity inversion result. The resolution of the model is computed using the resolution and covariance matrix computed with the SimulPS algorithm. Figure  8 shows representative V P and V S maps and associated estimation error...
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Journal Article
Published: 01 October 2012
Bulletin of the Seismological Society of America (2012) 102 (5): 2239–2244.
... determined using HYPOINVERSE ( Klein, 2002 ) or SIMULPS ( Thurber, 1983 ), which uses a similar routine for the calculation. The vertical errors are expected to be somewhat larger than the horizontal errors, depending on the station spacing and availability of analyst‐reviewed P and S picks...
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Journal Article
Published: 01 January 2009
Seismological Research Letters (2009) 80 (1): 63–70.
... Calabria) from the confining locked segments. Guarnieri ( 2006 ) also proposed counterclockwise rotation of the retreating subduction hinge in recent times. We used the standard Simulps code ( Evans et al. 1994 ) to invert the arrival time data for the P -wave velocity structure at the depth...
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Journal Article
Journal: Geology
Published: 01 September 2001
Geology (2001) 29 (9): 847–850.
... Each data set was inverted separately for the three-dimensional V p and V p/ V s structure; the SIMULPS software ( Eberhart-Phillips, 1990 ; Thurber, 1983 ) was used. Decreasing the number of events in a tomographic study may significantly reduce resolution owing to less ray coverage...
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Journal Article
Published: 01 June 2004
Bulletin of the Seismological Society of America (2004) 94 (3): 880–896.
... P 5,875 S We used the computer code simulps 14 ( Thurber, 1983 ; Eberhart-Phillips, 1990 ), extended by Haslinger and Kissling ( 2001 ) for full three-dimensional ray shooting, to invert simultaneously for hypocenter locations and three-dimensional P -wave velocity ( V P...
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Journal Article
Published: 01 February 2010
Bulletin of the Seismological Society of America (2010) 100 (1): 225–240.
... type of data sets (both absolute and differential times) and inversion algorithm (tomoFDD), whereas the southern California model by Lin et al. (2007) is derived by applying the SIMULPS algorithm ( Thurber, 1983 , 1993 ; Eberhart-Phillips, 1990 ; Evans et al. , 1994 ) to absolute arrival...
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