Abstract We investigate the problem of fluid injection at constant pressure in a 2D Discrete Fracture Network (DFN) with randomly oriented and uniformly distributed frictionally-stable fractures. show that this shares similarities simpler scenario single planar shear fracture, investigated by Bhattacharya Viesca (2019); (2021) whose results are here extended to include closed form solutions for...

Remote triggering of small low-frequency seismic tremor (non-volcanic tremor) near the seismic-aseismic transition zone of subduction zones, by surface waves from large distant earthquakes, has been reported in southwest Japan and the Cascadia region. Recent observed triggering in southwest Japan from three large earthquakes (2003 Tokachi-oki, 2007 Solomon, and 2008 Wenchuan) covering wide azim...

Contrary to the normally observed increase in groundwater radon that occurs prior to earthquakes, we have measured anomalous decreases in radon concentration prior to the 2003 MW1⁄4 6.8 Chengkung and 2006 MW1⁄4 6.1 Taitung earthquakes that occurred within a 55 km radius from the Antung D1 monitoring well in eastern Taiwan. The v-shaped pattern of radon anomalies recognized at Antung is valuable...

Abstract The 2011 Tohoku-oki earthquake ( M w 9.0) was characterized by a huge fault slip on the shallowest part of plate interface, where behavior had been believed to be aseismic. In this study, we modeled two-dimensional resistivity distribution across area based ocean-bottom electromagnetic measurements understand physical properties around interface controlling rupture processes. optimal 2...

In this paper, the superelastic shape memory alloy (SMA) slit damper system as an alternative design approach for steel structures is intended to be evaluated with respect to inelastic behavior simulated by refined finite element (FE) analyses. Although the steel slit dampers conventionally used for aseismic design are able to dissipate a considerable amount of energy generated by the plastic y...