+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Source rupture process of the Mentawai, Indonesia earthquake of October 25, 2010, determined by joint inversion of teleseismic body wave and near-source strong motion data



Source rupture process of the Mentawai, Indonesia earthquake of October 25, 2010, determined by joint inversion of teleseismic body wave and near-source strong motion data



Bulletin of the International Institute of Seismology and Earthquake Engineering 46: 7-12



We investigated the source process of the 2010 Mentawai earthquake by joint inversion method using near source and teleseismic body-wave data. To perform a stable inversion, we applied smoothing constraints and determined their relative weights on the observed data using ABIC criterion. The teleseismic waveforms were windowed for 150 sec, band-passed between 0.001 and 1.0 Hz, and then integrated into displacement. The strong motion data were windowed for 250 sec, band-passed between 0.005 and 0.5 Hz, and then integrated into velocity. The re-sampling rate for both data set to be 0.25 sec. We estimated the fault area to be 190X70 km2 . The main source parameters are as follows: (strike, dip, rake)=(324 degrees , 10 degrees , 94.6 degrees ); the depth of hypocenter 13.5 km; the seismic moment 5.814X1020 Nm (Mw 7.8); source duration 102 sec; and the maximum slip amounts to 3.9 m. The source rupture process obtained probably can be divided into 2 stages. At stage 1, the rupture nucleated near the hypocenter and then propagated to the southwestward and broke the first asperity centering at 14 km from the epicenter. At stage 2, the rupture propagated to the northwestward and broke the second asperity which was centered about 78 km from the epicenter. Our total slip distribution is well consistent with the result of tsunami waveform analysis by Satake et al. (2011). This earthquake was categorized as a tsunami earthquake due to the long rupture duration and the generation of tsunami much larger than expected for its magnitude.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 037159060

Download citation: RISBibTeXText


Related references

Source rupture process of the 2003 Tokachi-oki earthquake determined by joint inversion of teleseismic body wave and strong ground motion data. Earth, Planets and Space 56(3): 311-316, 2004

Source rupture process of the Tecoman, Colima, Mexico earthquake of 22 January 2003, determined by joint inversion of teleseismic body-wave and near-source data. Bulletin of the Seismological Society of America 94(5): 1795-1807, 2004

Rupture Process of the 23 October 2011 Mw7.1 Van Earthquake in Eastern Turkey by Joint Inversion of Teleseismic, GPS and Strong-Motion Data. Pure and Applied Geophysics 172(6): 1383-1396, 2015

Source Process of the 2011 Tohoku Earthquake Estimated from the Joint Inversion of Teleseismic Body Waves and Geodetic Data Including Seafloor Observation Data Source Model with Enhanced Reliability by Using Objectively Determined Inversion Settings. Bulletin of the Seismological Society of America 103.2B, 2013

Source process of the 2003 Bam, Iran, earthquake inferred from joint inversion of teleseismic and strong motion data. Geophysical Research Abstracts 11, 2009

Source-rupture process of the 2007 Noto Hanto, Japan, earthquake estimated by the joint inversion of strong motion and GPS data. Bulletin of the Seismological Society of America 101.5, 2011

The rupture process during the 1999 Duzce, Turkey, earthquake from joint inversion of teleseismic and strong-motion data. Tectonophysics 391(1-4): 315-324, 2004

Joint inversion of teleseismic and strong motion data for the rupture process of the 2008 Wenchuan, China, earthquake. Geophysical Research Abstracts 12, 2010

Source complexity of the 4 March 2010 Jiashian, Taiwan, Earthquake determined by joint inversion of teleseismic and near field data. Journal of Southeast Asian Earth Sciences 64: 14-26, 2013

Source-rupture process of the 2011 Ibaraki-oki, Japan, Earthquake Mw 79 Eestimated from the joint inversion of strong-motion and GPS data Relationship with seamount and Philippine sea plate. 2013

Rupture process of 2011 Mw7.1 Van, Eastern Turkey earthquake from joint inversion of strong-motion, high-rate GPS, teleseismic, and GPS data. Journal of Seismology 19(4): 969-988, 2015

Source rupture process of the Kocaeli, Turkey, earthquake of August 17, 1999, obtained by joint inversion of near-field data and teleseismic data. Geophysical Research Letters 27(13): 1969, 2000

Rupture process of the M (sub S) 6.6 Superstition Hills, California, earthquake determined from strong-motion recordings; application of tomographic source inversion. Bulletin of the Seismological Society of America 79(2): 515-541, 1989

Joint inversion of teleseismic and strong-motion waveforms for the rupture process of the 1999 Duzce, Turkey earthquake. Individual Studies by Participants at the International Institute of Seismology and Earthquake Engineering 37: 139-148, 2001

Joint inversion of strong motion and geodetic data for the source process of the 2003 Tokachi-oki, Hokkaido, earthquake. Earth, Planets and Space 56(3): 329-334, 2004