Simulation of Near-Fault Strong-Ground Motion Using Hybrid Green's Functions

2000 ◽  
Vol 90 (3) ◽  
pp. 566-586 ◽  
Author(s):  
A. Pitarka
Keyword(s):  
Ground Motion ◽  
Green's Functions ◽  
Strong Ground Motion ◽  
Green’S Functions ◽  
Near Fault ◽  
Strong Ground

scholarly journals A technique for simulating strong ground motion using hybrid Green's function

1998 ◽  
Vol 88 (2) ◽  
pp. 357-367 ◽  
Author(s):  
Katsuhiro Kamae ◽  
Kojiro Irikura ◽  
Arben Pitarka
Keyword(s):  
Green’S Function ◽  
Ground Motion ◽  
Green's Function ◽  
Green's Functions ◽  
Strong Ground Motion ◽  
Green’S Functions ◽  
Ground Motions ◽  
Large Earthquake ◽  
Long Period ◽  
Strong Ground

Abstract A method for simulating strong ground motion for a large earthquake based on synthetic Green's function is presented. We use the synthetic motions of a small event as Green's functions instead of observed records of small events. Ground motions from small events are calculated using a hybrid scheme combining deterministic and stochastic approaches. The long-period motions from the small events are deterministically calculated using the 3D finite-difference method, whereas the high-frequency motions from them are stochastically simulated using Boore's method. The small-event motions are synthesized summing the long-period and short-period motions after passing them through a pair of matched filters to follow the omega-squared source model. We call the resultant time series “hybrid Green's functions” (HGF). Ground motions from a large earthquake are simulated by following the empirical Green's function (EGF) method. We demonstrate the effectiveness of the method at simulating ground motion from the 1995 Hyogo-ken Nanbu earthquake (Mw 6.9).

Strong Ground Motion and Pulse‐Like Velocity Observations in the Near‐Fault Region of the 2018 Mw 6.4 Hualien, Taiwan, Earthquake

2018 ◽  
Vol 90 (1) ◽  
pp. 40-50 ◽  
Author(s):  
Chun‐Hsiang Kuo ◽  
Jyun‐Yan Huang ◽  
Che‐Min Lin ◽  
Ting‐Yu Hsu ◽  
Shu‐Hsien Chao ◽  
...  
Keyword(s):  
Ground Motion ◽  
Strong Ground Motion ◽  
Near Fault ◽  
Fault Region ◽  
Taiwan Earthquake ◽  
Strong Ground
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