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Comment on “The effect of velocity structure errors on double‐difference earthquake location” by A. Michelini and A. Lomax
Author(s) -
Thurber Clifford,
Zhang Haijiang
Publication year - 2004
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2004gl020650
Subject(s) - code (set theory) , algorithm , significant difference , statistics , computer science , physics , mathematics , programming language , set (abstract data type)
Michelini and Lomax [2004] (hereinafter ML2004) make some statements regarding the double‐difference (DD) tomography method of Zhang and Thurber [2003] (hereinafter ZT2003) that are incorrect or misleading. In this comment, we indicate the ways in which ML2004 misrepresent characteristics of ZT2003's DD tomography algorithm and the associated code tomoDD. In the process, we clarify the ways in which tomoDD differs from the DD location code hypoDD of Waldhauser [2001] and Waldhauser and Ellsworth [2000] (hereinafter WE2000).