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Rupture process of the June 28, 1992 Big Bear Earthquake
Author(s) -
Jones L. E.,
Hough S. E.,
Helmberger D. V.
Publication year - 1993
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 - 10.1029/93gl02046
Subject(s) - aftershock , seismology , geology , fault plane , fault (geology) , surface rupture , induced seismicity , foreshock , plane (geometry) , waveform , directivity , earthquake rupture , geodesy , geometry , physics , telecommunications , mathematics , quantum mechanics , voltage , antenna (radio) , computer science
The June 28, 1992 Big Bear earthquake in southern California was assumed to have ruptured along a northeast‐trending plane, as suggested by long‐term aftershock distribution. No surface rupture was found, however, and mainshock locations determined from both strong motion and TERRAscope data are mutually consistent and do not lie on the assumed fault plane. An integrated study involving waveform modeling, directivity and seismicity analyses suggests a complex rupture pattern, with significant short‐ and long‐period energy propagating northwest along the presumed conjugate fault‐plane.