Determination of Seismic Source Parameters from the Coherence of Body Wave Phases

2013 ◽  
pp. 24-32
Author(s):  
B. G. Bukchin ◽  
A. V. Lander ◽  
A. Z. Mostinskii ◽  
V. I. Maksimov
Keyword(s):  
Body Wave ◽  
Source Parameters ◽  
Seismic Source ◽  
Seismic Source Parameters

scholarly journals Determination of Destress Blasting Effectiveness Using Seismic Source Parameters

2017 ◽  
Vol 50 (12) ◽  
pp. 3233-3244 ◽  
Author(s):  
Łukasz Wojtecki ◽  
Maciej J. Mendecki ◽  
Wacaław M. Zuberek
Keyword(s):  
Source Parameters ◽  
Seismic Source ◽  
Seismic Source Parameters ◽  
Destress Blasting

scholarly journals The use of body-wave spectra in the determination of seismic-source parameters

1972 ◽  
Vol 62 (2) ◽  
pp. 561-589 ◽  
Author(s):  
Thomas C. Hanks ◽  
Max Wyss
Keyword(s):  
Body Wave ◽  
Source Parameters ◽  
Seismic Source ◽  
Source Model ◽  
Radiated Energy ◽  
Vertical Fault ◽  
Seismic Source Model ◽  
Minimum Estimate ◽  
Stress Drops

abstract Teleseismic determinations of body-wave (P, S) spectra, interpreted in terms of the Brune (1970) seismic-source model, are used to estimate the parameters seismic moment (Mto) and source dimension (r) for three large, shallow, strike-slip earthquakes occurring on nearly vertical fault planes and for which the same parameters can be determined from field (F) data. These earthquakes are (1) the Borrego Mountain, California, earthquake (April 9, 1968) for which [Mo(P) = 10, Mo(S) = 6.6, and Mo(F) = 3.6] × 1025 dyne-cm and [r(p) = 14, r(S) = 23, and L/2(F) = 17] km; (2) the Mudurnu Valley, Turkey, earthquake (July 22, 1967) for which [-Mo(P) = 9.1, Mo(S) = 8.5, and Mo(F) = 7.4] × 1026 dyne-cm, and [r(P) = 39, r(S) = 48, and L/2(F) = 40] km; and (3) the Dasht-e-Bayāz, Iran, earthquake (August 31, 1968) for which [Mo(P) = 4.8, Mo(S) = 8.6, and Mo(F) = 18] × 1026 dyne-cm, and [r(P) = S1, r(S) = 48, and L/2(F) = 40] km. The Brune (1970) model is well-calibrated with respect to the determination of these parameters for the earthquakes considered. A minimum estimate for the radiated energy can be expressed in terms of Mo and r; this estimate is low by a factor of 10 with respect to the estimate obtained from energy-magnitude relations for these three earthquakes. The stress drops of these events are of the order of 10 bars.

Estimating the accuracy of source “parameters”

1967 ◽  
Vol 57 (3) ◽  
pp. 373-379 ◽  
Author(s):  
Helen W. Freedman
Keyword(s):  
Standard Error ◽  
Source Parameters ◽  
Seismic Source ◽  
Origin Time ◽  
Intermediate Depth ◽  
Seismic Source Parameters ◽  
Space And Time

abstract This paper suggests a method for estimating the errors accompanying estimates of seismic source parameters. While the method is a general one, the data here are from 1962 and 1963 and special attention is given to a few regions, such as the Kuriles. The overall standard error of about one-half a degree in each coordinate and four seconds in origin time are broken down and analyzed in terms of magnitude, depth, and location in space and time. The most accurately located earthquakes appear to be those of intermediate depth and magnitude in highly seismic areas. There is some indication that these errors are decreasing with time.

Geophysics: A new way to estimate seismic source parameters

Nature ◽  
1983 ◽  
Vol 302 (5910) ◽  
pp. 659-660 ◽  
Author(s):  
Brian L.N. Kennett
Keyword(s):  
Source Parameters ◽  
Seismic Source ◽  
Seismic Source Parameters
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