Open AccessInvestigations on the aftershock sequence of the great Assam earthquake of August 15, 1950
Author(s) -
R. K. S. Chouhan,
Vidit Gaur,
Jyoti Singh
Publication year - 2010
Publication title -
annals of geophysics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 60
eISSN - 2037-416X
pISSN - 1593-5213
DOI - 10.4401/ag-4923
Subject(s) - aftershock , seismology , geology , sequence (biology) , fault (geology) , fault plane , slip (aerodynamics) , strike slip tectonics , foreshock , geodesy , engineering , genetics , aerospace engineering , biology
The strain release curve of the aftershock sequence of
the great Assam earthquake of August 15, 1950 exhibits three linear segments.
A secondary aftershock sequence has also been reported; the strain
release curve in this case is also linear. The b value, using the maximum
likelihood method of Utsu, for the sequence is 0.52 ± 0.095. The fault plane
solution shows that the fault strikes almost cast-west and dips northward
at an angle of 80°; the motion is predominently strike slip (right lateral
type). The spatial distribution of aftershocks shows two main centers of
activity at the two ends of the probable fault