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A//r//m//s AND SEISMIC SOURCE STUDIES.

By:
Edited by:
Gay N.C.Wainwright E.H.

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Abstract

This paper briefly summarizes some recent developments in studies of seismic source parameter estimation, emphasizing the essential similarities between mining-induced seismogenic-failure and naturally occurring, tectonically driven earthquakes. The root-mean-square acceleration, a//r//m//s, shows much promise as an observational measure of high-frequency ground motion; it is very stable observationally, is insensitive to radiation pattern, and can be related linearly to the dynamic stress differences arising in the faulting process. To interpret a//r//m//s correctly, however, requires knowledge of f//m//a//x, the high-frequency band-limitation of the radiated field of earthquakes. As a practical matter, f//m//a//x can be due to any number of causes, but an essential ambiguity is whether or not f//m//a//x can arise from source properties alone. The interaction of the aftershocks of the Oroville, California, earthquake illustrates how a//r//m//s stress drops may be connected to detailed seismicity patterns.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
A//r//m//s AND SEISMIC SOURCE STUDIES.
ISBN:
062006708X
Year Published:
1984
Language:
English
Publisher:
South African Inst of Mining and Metallurgy
Publisher location:
Johannesburg, S Afr
First page:
39
Last page:
44
Number of Pages:
6
Conference Title:
Rockbursts and Seismicity in Mines.
Conference Location:
Johannesburg, S Afr