Ground motions for FEMA P-695 application in subduction zones
نویسندگان
چکیده
منابع مشابه
Regional differences in subduction ground motions
A few ground-motion prediction models have been published in the last years, for predicting ground motions produced by interface and intraslab earthquakes. When one must carry out a probabilistic seismic hazard analysis in a region including a subduction zone, GMPEs must be selected to feed a logic tree. In the present study, the aim is to identify which models provide the best fit to the datas...
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The near-field strong motions during the 1985 Michoacan earthquake (M8) are successfully simulated at broadband frequencies. For the simulation at low frequencies (0 to 1 Hz), the modified k-square model (Hisada, 1999) is used by considering the k-squared (wavenumbersquared) distributions of slip (Mendoza and Hartzell, 1989) and the incoherent rupture time. For modeling the slip velocity, the K...
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[1] Subduction zones are where sediments, oceanic crust, and mantle lithosphere return to and reequilibrate with Earth’s mantle. Subduction zones are interior expressions of Earth’s 55,000 km of convergent plate margins and are the geodynamic system that builds island arcs. Excess density of the mantle lithosphere in subduction zones provides most of the power needed to move the plates while in...
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Bending of lithospheric plates at subduction zones is thought to be an important source of dissipation for convection in the Earth's mantle. However, the influence of bending on plate motion is uncertain. Here we use a variational description of mantle convection to show that bending strongly affects the direction of plate motion. Subduction of slabs and subsidence of oceanic lithosphere with a...
متن کاملSimple Kinematics of Subduction Zones
Two main types of subduction zones can be distinguished: (1) those where the subduction hinge migrates away from the upper plate; and (2) those in which the subduction hinge migrates toward the upper plate. Apart from a few exceptions, this distinction seems to apply particularly for W-directed subduction zones and Eor NE-directed subduction zones, respectively. Moreover, the rate of subduction...
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ژورنال
عنوان ژورنال: Latin American Journal of Solids and Structures
سال: 2019
ISSN: 1679-7825,1679-7817
DOI: 10.1590/1679-78255848