[1] The 2011, Mw9.0 Tohoku earthquake was followed by an abundant amount of seismicity providing a unique opportunity to analyze the triggering mechanism of great earthquakes. Although the Tohoku earthquake occurred close to a dense seismic network, many aftershocks that occurred in the first few hours after the mainshock are not recorded in the earthquake catalogs. Here we use a template wavef...

[1] We analyze spatio-temporal patterns in rotation angles of double-couple–constrained mechanisms of aftershocks of the 1992 Landers earthquake. The rotation angles provide information on the distribution of source geometries in different regions of space and time with respect to the mainshock focal mechanism. The results indicate that the mechanisms of the early aftershocks are more scattered...

Abstract We present here an analysis of the destructive Mw 6.2 earthquake sequence that took place on 14 January 2021 in Mamuju–Majene, West Sulawesi, Indonesia. Our relocated foreshocks, mainshock, and aftershocks their focal mechanisms show they occurred two different fault planes, which foreshock perturbed stress state a nearby segment, causing plane to subsequently rupture. The mainshock ha...

Abstract One of the most seismically active regions in United States, located hundreds kilometers inland from nearest plate boundary, is Intermountain Seismic Belt (ISB). The 6 July 2017 M 5.8 earthquake occurred 11 km southeast Lincoln, Montana, within ISB. This was largest to rupture state Montana since 1959 7.3 Hebgen Lake earthquake. We use continuous seismic data University Network, Region...

The slope instability brought on by earthquakes frequently results in significant property damage and casualties. At present, the research displacement response of a under earthquake has mainly emphasized action mainshock, without accounting for impact an aftershock, spatial variability material parameters is often neglected. fully accounted this paper, dynamic reliability permanent (DP) produc...

Abstract. The spatiotemporal heterogeneity of b values has great potential for helping in understanding the seismogenic process and assessing seismic hazard. However, there is still much controversy about whether it exists or not, an important reason that choice subjective parameters eroded foundations research. To overcome this problem, we used a recently developed non-parametric method based ...

Aftershock fragility is usually calculated conditioned on a range of potential post-mainshock damage states. The can be identified using indices, the latter being frequently associated with displacement-based parameters such as maximum drift ratio or residual displacement. However, when reliable simulation structural system in specific state objective numerical study, indicators may not assure ...

Aseismic afterslip has been proposed to drive aftershock sequences. Both moment and number broadly increase with mainshock size, but can vary beyond this scaling. We examine whether relative (afterslip moment/mainshock moment) correlates several key sequence characteristics, including cumulative (both absolute size), seismicity rate change, b-value, Omori decay exponent. select Mw ? 4.5 aftersh...