Direct test of static stress versus dynamic stress triggering of aftershocks

2006 ◽  
Vol 33 (15) ◽  
Author(s):  
Fred F. Pollitz ◽  
Malcolm J. S. Johnston
Keyword(s):  
Dynamic Stress ◽  
Static Stress ◽  
Direct Test ◽  
Stress Triggering ◽  
Dynamic Stress Triggering

Absence of Near-Trench Early Triggering during the 2012 Mw 7.2 Indian Ocean Strike-Slip Earthquake: Evidence from One-Day Aftershocks

2021 ◽  
Author(s):  
Bo Jia ◽  
Han Yue ◽  
Muzli Muzli
Keyword(s):  
Indian Ocean ◽  
Dynamic Stress ◽  
Vital Role ◽  
Earthquake Triggering ◽  
Dynamic Triggering ◽  
Earthquake Interaction ◽  
Stress Triggering ◽  
Completeness Magnitude ◽  
Seismic Hazard Estimation ◽  
Dynamic Stress Triggering

Abstract Dynamic earthquake triggering is a widely accepted mechanism of earthquake interaction, which plays a vital role in seismic hazard estimation, although its efficacy at regional distances is under debate. The 2012 Mw 7.2 Indian Ocean event is one of the first reported events to produce dynamic stress triggering at regional distances using backprojection (BP) techniques. Alternatively, the coherent radiators in BP images can be interpreted as localized water reverberation phases. We present further evidence against near-trench triggering during this event. We collected 24 hr seismic recordings of two nearby stations located near the trench. We adopted a waveform denoising algorithm and detected 125 aftershocks using two regional seismic stations with a minimum magnitude of ML∼2.7 and completeness magnitude of ML∼3.6, whereas none of these aftershocks occurred near the trench. The absence of immediate (within one day) aftershocks near the trench suggest the absence of dynamic triggering during the offshore mainshock.

The Generalized Dynamic Factor of Hydraulic Excavator Working Device

2015 ◽  
Vol 757 ◽  
pp. 75-80
Author(s):  
Zhi Gui Ren ◽  
Jin Chen ◽  
Xiao Ping Pang ◽  
Dong Sheng Zhang
Keyword(s):  
Statistical Analysis ◽  
Dynamic Stress ◽  
Static Strength ◽  
Static Stress ◽  
Strength Analysis ◽  
Dynamic Factor ◽  
Hydraulic Excavator ◽  
Test Points ◽  
Working Device

Synchronous test platforms were built to test the dynamic stress and working device attitude. The dynamic stress spectrums of all the test points under a variety of common conditions were obtained. The digging gestures corresponding to the peak of the dynamic stress spectrums were found out and taken as the specified digging gestures for the calculation of the static stress. The static stress nephogram of working device under the specified digging gestures was calculated using traditional static strength analysis. By conducting statistical analysis on the ratio of dynamic stress and static stress of all the testing points. Then, the range of generalized dynamic factor of working device was obtained.

scholarly journals Systematic assessment of the static stress triggering hypothesis using interearthquake time statistics

2016 ◽  
Vol 121 (3) ◽  
pp. 1890-1909 ◽  
Author(s):  
Shyam Nandan ◽  
Guy Ouillon ◽  
Jochen Woessner ◽  
Didier Sornette ◽  
Stefan Wiemer
Keyword(s):  
Static Stress ◽  
Systematic Assessment ◽  
Stress Triggering

scholarly journals Nanoseismicity and picoseismicity rate changes from static stress triggering caused by a Mw 2.2 earthquake in Mponeng gold mine, South Africa

2015 ◽  
Vol 120 (1) ◽  
pp. 290-307 ◽  
Author(s):  
Maria Kozłowska ◽  
Beata Orlecka-Sikora ◽  
Grzegorz Kwiatek ◽  
Margaret S. Boettcher ◽  
Georg Dresen
Keyword(s):  
South Africa ◽  
Static Stress ◽  
Gold Mine ◽  
Stress Triggering
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