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QUAKE3D

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Journal Article
Published: 01 April 1990
Bulletin of the Seismological Society of America (1990) 80 (2): 395-410.
...Glenn D. Nelson; John E. Vidale Abstract We present a new method for locating earthquakes in a region with arbitrarily complex three-dimensional velocity structure, called QUAKE3D. Our method searches a gridded volume and finds the global minimum travel-time residual location within the volume. Any...
Journal Article
Published: 01 October 1991
Bulletin of the Seismological Society of America (1991) 81 (5): 1705-1725.
... earthquakes recorded by a sparse three-component network. Events are located using the program QUAKE3D (Nelson and Vidale, 1990) with both 2-D and 3-D velocity models that have been developed independently for this region. The dense coverage of the area around the Loma Prieta rupture zone by instruments...
Journal Article
Published: 01 August 2012
Bulletin of the Seismological Society of America (2012) 102 (4): 1764-1785.
... station algorithm consists of a grid search that avoids the matrix inversion. The search procedure is basically similar to those of Nelson and Vidale (1990 , QUAKE3D) or Wittlinger et al. (1993 , 3DGRIDLOC). The master station algorithm introduces a 3D finite‐difference travel‐time algorithm...
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