Dynamic Stress Triggering during the Great 25 March 1998 Antarctic Plate Earthquake

2002 ◽  
Vol 92 (3) ◽  
pp. 896-903 ◽  
Author(s):  
A. Antonioli
Keyword(s):  
Dynamic Stress ◽  
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.

scholarly journals Assessment of the Piezoelectric Response of an Epoxy Resin/SbSINanowires Composite Filling FDM Printed Grid

Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5281
Author(s):  
Mateusz Kozioł ◽  
Piotr Szperlich ◽  
Bartłomiej Toroń ◽  
Piotr Olesik ◽  
Marcin Jesionek
Keyword(s):  
Dynamic Stress ◽  
Piezoelectric Effect ◽  
Wide Spectrum ◽  
Piezoelectric Response ◽  
Monitoring Systems ◽  
Grid Structure ◽  
Voltage Signal ◽  
Antimony Sulfoiodide ◽  
Deposition Modeling ◽  
Applied Design

This paper shows a piezoelectric response from an innovative sensor obtained by casting epoxy-SbSI (antimony sulfoiodide) nanowires nanocomposite to a grid structure printed using a fuse deposition modeling (FDM) method. The grid is shown to be a support structure for the nanocomposite. The applied design approach prospectively enables the formation of sensors with a wide spectrum of shapes and a wide applicability. The voltage signal obtained as a result of the piezoelectric effect reached 1.5V and 0.5V under a maximum static stress of 8.5 MPa and under a maximum dynamic stress of 22.3 kPa, respectively. These values are sufficient for potential application in sensor systems. The effect of a systematic increase in the voltage signal with subsequent cycles was also observed, which similarly allows the use of these sensors in monitoring systems for structures exposed to unfavorable cyclical loads. The obtained results also show that the piezoelectric signal improves with increase in strain rate.

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