THE RUPTURE PROCESS OF THE 2004 SUMATRA-ANDAMAN EARTHQUAKE VIEWED FROM STRAINMETER DATA
Keyword(s):
Methods for estimating source time function (STF) and temporal variation of back-azimuth of the earthquake source using volmetric and multi-components strainmeter installed in Japan were developed. By applying those methods to the 2004 Sumatra-Andaman giant earthquake, the STF was estimated using volmetric strain records. The duration was about 700 s and the total moment was 5.2 × 1022 Nm, which were almost consistent with other results using seismometer records. Back-azimuth was successfully estimated by multi-components strain records, but the rupture propagation effect was not observed. Those methods were good tools for rapid estimation of giant earthquake source process and were useful for tsunami warnings.
1972 ◽
Vol 31
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pp. 3-25
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2008 ◽
Vol 165
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pp. 1263-1287
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1974 ◽
Vol 11
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pp. 54
Proceedings of the ISCIE International Symposium on Stochastic Systems Theory and its Applications
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2001 ◽
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pp. 183-188
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2014 ◽
Vol 104
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pp. 855-874
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1995 ◽
Vol 85
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pp. 516-524
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