Field Survey of 2010 Mentawai Earthquake Tsunami
نویسندگان
چکیده
منابع مشابه
The 25 October 2010 Mentawai tsunami earthquake ( Mw 7 . 8 ) and the tsunami hazard presented by shallow megathrust ruptures
[1] The 25 October 2010 Mentawai, Indonesia earthquake (Mw 7.8) ruptured the shallow portion of the subduction zone seaward of the Mentawai islands, off‐shore of Sumatra, generating 3 to 9 m tsunami run‐up along southwestern coasts of the Pagai Islands that took at least 431 lives. Analyses of teleseismic P, SH and Rayleigh waves for finite‐fault source rupture characteristics indicate ∼90 s ru...
متن کاملValidation of linearity assumptions for using tsunami waveforms in joint inversion of kinematic rupture models: Application to the 2010 Mentawai Mw 7.8 tsunami earthquake
Tsunami observations have particular importance for resolving shallow offshore slip in finite-fault rupture model inversions for large subduction zone earthquakes. However, validations of amplitude linearity and choice of subfault discretization of tsunami Green’s functions are essential when inverting tsunami waveforms. We explore such validations using four tsunami recordings of the 25 Octobe...
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Tsunami observations play an important role in resolving offshore earthquake slip distributions. Non-dispersive models are often used with an initial static sea-surface pulse derived from seafloor deformation in computation of tsunami Green's functions. We compare this conventional approach with more advanced techniques, which use Green's functions computed by a dispersive model with an initial...
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S U M M A R Y Historical reports of an earthquake in Tonga in 1865 November identify it as the only event from that subduction zone which generated a far-field tsunami observable without instruments. Run-up heights reached 2 m in Rarotonga and 80 cm in the Marquesas Islands. Hydrodynamic simulations require a moment of 4 × 1028 dyn cm, a value significantly larger than previous estimates of the...
متن کاملComputational Earthquake and Tsunami Research
U nderstanding and mitigating the effects of disasters requires the integration of research and practice in multiple science, engineering, technology, and social science fields to create a world that’s more resilient in terms of public safety, economic strength, and collective welfare. The January/February 2011 issue of CiSE explored hurricane prediction.1 Hurricanes are one of many natural dis...
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ژورنال
عنوان ژورنال: Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
سال: 2011
ISSN: 1884-2399,1883-8944
DOI: 10.2208/kaigan.67.i_1281