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VELEST Program

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(a) Solution of seismic velocity in the study area from simultaneous invers...
Published: 16 August 2023
Figure 3. (a) Solution of seismic velocity in the study area from simultaneous inversion in the Velest program. The red line is the best solution that converges from various models, as represented by the gray line. (b) The root mean square (rms) graph of Velest processing from best model denotes
Journal Article
Published: 01 October 2001
Bulletin of the Seismological Society of America (2001) 91 (5): 1379.
... was originally developed by Thurber ( 1983 ) and was modified by others to solve for V p and V p / V s instead of solving for V p and V s . We have followed the approach of Kissling et al. ( 1994 ) by obtaining an initial reference model (the minimum 1D model) using the VELEST program ( Kissling...
Journal Article
Published: 19 November 2019
Bulletin of the Seismological Society of America (2020) 110 (1): 26–37.
... not work well for the S wave. After this phase detection process using variance ratio, the number of the S ‐wave picking increased from 61,266 to 87,621, and that of the P wave changed slightly from 133,088 to 138,436. We used the VELEST program to perform the joint hypocenter determination...
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Journal Article
Published: 09 March 2022
Seismological Research Letters (2022) 93 (5): 2426–2438.
... three options for earthquake absolute location using two popular location codes: VELEST ( Kissling et al. , 1994 , 1995 ) and HYPOINVERSE ( Klein, 2002 ). Option 1 : Locate earthquakes using the VELEST program. VELEST is a least‐square‐based earthquake location program. It can not only locate...
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Journal Article
Published: 01 February 2013
Bulletin of the Seismological Society of America (2013) 103 (1): 328–339.
... S ‐phase readings and weighted root mean square (rms) time residual <1.0  s (see Fig. S1, available as an electronic supplement to this paper), and using the VELEST program ( Kissling, 1988 ; Kissling et al. , 1994 ) that simultaneously inverts for earthquake locations, 1D velocity model...
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Journal Article
Published: 01 May 2010
Seismological Research Letters (2010) 81 (3): 460–466.
...). We performed simultaneous inversion for velocity and hypocenter parameters using the program VELEST (Ellsworth 1971; Kissling et al. 1994 , 1995 ). The method involves the calculation of a minimum 1-D velocity model ( Kissling 1988 ), which represents the least squares solution of travel time...
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Journal Article
Published: 16 August 2023
Seismological Research Letters (2023) 94 (6): 2586–2594.
...Figure 3. (a) Solution of seismic velocity in the study area from simultaneous inversion in the Velest program. The red line is the best solution that converges from various models, as represented by the gray line. (b) The root mean square (rms) graph of Velest processing from best model denotes...
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Journal Article
Published: 23 August 2023
Bulletin of the Seismological Society of America (2023) 113 (6): 2447–2460.
... used the VELEST program ( Kissling, 1988 ; Kissling et al. , 1994 ) to locate the earthquakes during 2008–2018 in the Haicheng area absolutely and then used the HypoDD program ( Waldhauser and Ellsworth, 2000 ) to locate these events relatively. Considering that the original HypoDD program does...
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Journal Article
Published: 04 April 2024
Bulletin of the Seismological Society of America (2024)
... populated Stanley region, resulting in only minor damage ( Idaho Geological Survey, 2020 ; USGS Earthquake Hazards Program, 2020 ). Despite its magnitude, no surface ruptures have been reported ( Idaho Geological Survey, 2020 ; Liberty et al. , 2021 ). The Stanley earthquake (Fig.  1...
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 22 February 2022
Lithosphere (2021) 2021 (Special 6): 2834594.
... velocity model in the area. Therefore, we considered the 1D velocity model calculated by Mahesh et al. [ 41 ] for the joint inversion of hypocenter parameters and velocity model under simultaneous mode in the VELEST program. The inversion process was terminated when the final solution was reached after...
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Journal Article
Published: 03 July 2019
Seismological Research Letters (2019) 90 (5): 1923–1936.
... locations and station corrections using the VELEST program ( Ellsworth, 1978 ; Kissling et al. , 1994 ). The seismic travel‐time problem is a nonlinear problem of seismic velocity model along the ray path and the earthquake locations ( Kissling et al. , 1994 ). The quality of the 1D velocity model...
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Journal Article
Published: 28 June 2023
Seismological Research Letters (2023) 94 (5): 2257–2272.
... of the 1992 Erzincan earthquake (Ms= 6.8) aftershock sequence , Phys. Earth Planet. In. 151 , nos.  1/2 , 1 – 20 . Kissling E. Kradolfer U. , and Maurer H. 1995 . Program VELEST user’s guide‐Short Introduction , Institute of Geophysics, ETH Zurich . Laske G. Masters G...
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Journal Article
Published: 01 April 1987
Bulletin of the Seismological Society of America (1987) 77 (2): 539–561.
.... Roecker S. Ellsworth W. L. (1978) . VELEST, Fortran Program , U. S. Geological Survey , Menlo Park, California . Sibson R. H. (1984) . Roughness...
Journal Article
Published: 12 December 2018
Seismological Research Letters (2019) 90 (2A): 553–562.
...) . Before the relocation process, we calculate the rough locations using the Velest program ( Kissling et al. , 1994 ) with the absolute P ‐wave arrival time alone. The initial location of the hypoDD program is set to be the cluster center of the rough locations. We also set the initial depth to be 2 km...
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Journal Article
Published: 01 July 2013
Seismological Research Letters (2013) 84 (4): 600–610.
... in groundwater circulation: some existing wells have totally dried out and new geothermal springs have appeared. Program VELEST ( Kissling et al. , 1994 ) was used to invert for a more complex 1D velocity model. The starting model, as recommended by Kissling et al. (1994) , has interfaces at every 2...
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Journal Article
Published: 13 October 2022
Bulletin of the Seismological Society of America (2023) 113 (1): 58–72.
... October and 14 November of the catalog, and (d) events between 15 November and 31 December of the catalog. After identifying the best‐fitting 1D velocity model (Table  2 ) from the joint inversion described earlier, we run the Velest program one last time to relocate the entire set of 2820...
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Journal Article
Published: 26 July 2023
Seismological Research Letters (2023) 94 (5): 2244–2256.
.... 1994 . Initial reference models in local earthquake tomography , J. Geophys. Res. 99 , no.  B10 , 19,635 – 19,646 . Kissling E. Kradolfer U. , and Maurer H. 1995 . Program velest user’s guide‐short introduction , Institute of Geophysics, ETH Zurich , available at https...
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Journal Article
Published: 01 April 2010
Bulletin of the Seismological Society of America (2010) 100 (2): 629–639.
... underestimate the true location errors ( Kradolfer, 1989 ; Husen et al. , 1999 ). Precise hypocenter location and, in particular, their uncertainty estimates, therefore, demand the simultaneous inversion of velocity and hypocenter parameters. The Shareware program VELEST ( Kissling, 1998 ) iteratively...
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Journal Article
Published: 25 September 2018
Bulletin of the Seismological Society of America (2018) 108 (6): 3668–3683.
.... A new optimal velocity model and new station corrections for all available stations were calculated by joint inversion for hypocenters and P ‐ and S ‐velocity models using the VELEST program ( Kissling et al. , 1994 ). Figure 5. Epicenters calculated from (a) routine HYPOSAT earthquake...
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Journal Article
Published: 05 July 2017
Seismological Research Letters (2017) 88 (5): 1333–1338.
... models in local earthquake tomography , J. Geophys. Res. 99 , 19,635 – 19,646 . Kissling E. Kradolfer U. , and Maurer H. 1995 . Program VELEST User’s Guide—Short Introduction (Second Draft Version) , Institute of Geophysics and Swiss Seismological Service, ETH...
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