SCALING RELATIONS FOR EARTHQUAKE SOURCE SPECTRUM AND JMA MAGNITUDE
نویسندگان
چکیده
منابع مشابه
Scaling Relations for Earthquake Source Parameters and Magnitudes
A data set of 41 moderate and large earthquakes has been used to derive scaling rules for kinematic fault parameters. If effective stress and static stress drop are equal, then fault rise time, z, and fault area, S, are related by z = 16S1/2/(7~3/2~8), where ,8 is shear velocity. Fault length (parallel to strike) and width (parallel to dip) are empirically related by L = 2W. Scatter for both sc...
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Attempts to build a “constant-stressdrop” scaling of an earthquake-source spectrum have invariably met with difficulties. Physically, such a scaling would mean that the low-frequency content of the spectrum would control the highfrequency one, reducing the number of the parameters governing the time history of a shear dislocation to one. This is technically achieved through relationships of the...
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[1] The accumulation of strong earthquakes with resembling source mechanisms in the Romanian Vrancea zone, SE Carpathians, allows for designing a simple, cheep and robust earthquake early warning (EEW) system for Bucharest with leading times of about 25 s. A previously established scaling relation for EEW predicts in the range from 1–2 s a ten times higher ground motion amplitude in Bucharest t...
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Earthquake time history records are required to perform dynamic nonlinear analyses. In order to provide a suitable set of such records, they are scaled to match a target spectrum as introduced in the well-known design codes. Corresponding scaling factors are taken similar in practice however, optimizing them reduces extra-ordinary economic charge for the seismic design. In the present work a ne...
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ژورنال
عنوان ژورنال: Journal of Structural and Construction Engineering (Transactions of AIJ)
سال: 1991
ISSN: 0910-8025,2433-0000
DOI: 10.3130/aijsx.425.0_19