The rupture of the Sumatra earthquake (Mw = 9.0) is complex and quite
difficult to estimate using classical source inversion methods due
to the exceptional rupture duration. To fix the problem of geographical
extent and rupture duration, we use array processing of hydroacoustic
and regional seismic data. The CMAR-seismic array and the Diego Garcia
hydroacoustic station (H08S) installed by the International Monitoring
System are respectively 15.2 and 25.7 deg far from the hypocenter.
The estimation of azimuth and velocity variations of homogeneous
wave fronts across the arrays gives us the opportunity to understand
how the rupture propagates. The smooth and regular variations of
azimuth fit a rupture extension of 1235 km and a duration of 515
s.This study proves that the combination of array analysis using
the different technologies installed for the CTBT is an interesting
way of research for a rapid estimation of tsunamigenic earthquakes.
%0 Journal Article
%1 guilbert_etal:2005
%A Guilbert, J.
%A Vergoz, J.
%A Schisselé, E.
%A Roueff, A.
%A Cansi, Y.
%D 2005
%J Geophysical Research Letters
%K geophysics seismology
%N 15
%P L15310+
%R 10.1029/2005GL022966
%T Use of hydroacoustic and seismic arrays to observe rupture propagation
and source extent of the Mw = 9.0 Sumatra earthquake
%U http://dx.doi.org/10.1029/2005GL022966
%V 32
%X The rupture of the Sumatra earthquake (Mw = 9.0) is complex and quite
difficult to estimate using classical source inversion methods due
to the exceptional rupture duration. To fix the problem of geographical
extent and rupture duration, we use array processing of hydroacoustic
and regional seismic data. The CMAR-seismic array and the Diego Garcia
hydroacoustic station (H08S) installed by the International Monitoring
System are respectively 15.2 and 25.7 deg far from the hypocenter.
The estimation of azimuth and velocity variations of homogeneous
wave fronts across the arrays gives us the opportunity to understand
how the rupture propagates. The smooth and regular variations of
azimuth fit a rupture extension of 1235 km and a duration of 515
s.This study proves that the combination of array analysis using
the different technologies installed for the CTBT is an interesting
way of research for a rapid estimation of tsunamigenic earthquakes.
@article{guilbert_etal:2005,
abstract = {The rupture of the Sumatra earthquake (Mw = 9.0) is complex and quite
difficult to estimate using classical source inversion methods due
to the exceptional rupture duration. To fix the problem of geographical
extent and rupture duration, we use array processing of hydroacoustic
and regional seismic data. The CMAR-seismic array and the Diego Garcia
hydroacoustic station (H08S) installed by the International Monitoring
System are respectively 15.2 and 25.7 deg far from the hypocenter.
The estimation of azimuth and velocity variations of homogeneous
wave fronts across the arrays gives us the opportunity to understand
how the rupture propagates. The smooth and regular variations of
azimuth fit a rupture extension of 1235 km and a duration of 515
s.This study proves that the combination of array analysis using
the different technologies installed for the CTBT is an interesting
way of research for a rapid estimation of tsunamigenic earthquakes.},
added-at = {2012-09-01T13:08:21.000+0200},
author = {Guilbert, J. and Vergoz, J. and Schissel\'{e}, E. and Roueff, A. and Cansi, Y.},
biburl = {https://www.bibsonomy.org/bibtex/29b69275475aaee3078b10ef07980d7a7/nilsma},
day = 12,
doi = {10.1029/2005GL022966},
interhash = {4166a27980401c21f481d6635b782500},
intrahash = {9b69275475aaee3078b10ef07980d7a7},
issn = {0094-8276},
journal = {Geophysical Research Letters},
keywords = {geophysics seismology},
month = aug,
number = 15,
pages = {L15310+},
timestamp = {2021-02-09T13:25:06.000+0100},
title = {Use of hydroacoustic and seismic arrays to observe rupture propagation
and source extent of the Mw = 9.0 Sumatra earthquake},
url = {http://dx.doi.org/10.1029/2005GL022966},
volume = 32,
year = 2005
}