Introduction: The 2015 M s 5.8 Alxa Left Banner earthquake (Alxa eathquake) struck a sparsely inhabited area of Inner Mongolia, northwestern China. However, as first > 5 event on the Ningxia–Inner Mongolia segment North–South seismic zone for 24 years, is considerable scientific interest. Methods: In this study, distribution sequence was redetermined via analysis data from permanent and ...

Evaluation of the residual seismic capacity (RSC) post-earthquake damaged buildings is instrumental to formation reasonable recovery strategies. At present, incremental dynamic analysis (IDA) that considers mainshock and aftershock method most frequently used evaluate RSC structures. However, mainshock-induced structural damage determined using IDA may be inconsistent with observed in actual en...

Abstract On 6 February 2023, two large earthquakes with magnitude 7.8 and 7.6 rocked south-central Türkiye northwestern Syria. At the time of writing, death toll exceeded 50,000 in 7200 The epicenter first mainshock was located ?15 km east Anatolian fault (EAF), second earthquake (9 hr later) initiated ?90 to north on east–west-trending Sürgü fault. Aftershocks delineate lengths ?350 ?170 km, r...

Abstract In December 2007, an Mw2.2 earthquake occurred in a gabbroic dike at 3.3 km depth deep gold mine South Africa. The fore- and aftershock activity was analyzed effort to understand the preparation generation processes of earthquakes; these findings have already been published. present paper focuses on stress state source region mainshock. A 90-m-long borehole across mainshock fault drill...

Coseismic changes in principal stress orientation the northern Sumatra subduction zone due to two giant megathrust earthquakes there 2004 and 2005 are estimated investigate in-situ stress. The earthquakes, Sumatra-Andaman Nias-Simeulue events, both among 11 largest ever recorded. Previous studies have shown that these perturbed field enough alter directions there, here we whether can be used be...

After a strong mainshock, subsequent ground motion is the result of sequence multiple aftershocks, and damage to structure under these conditions more severe than from single earthquake. Most seismic studies are based on earthquake event. To explore influence main-aftershock an isolated inter-story structure, we constructed three-dimensional finite-element model such subjected it repeated seque...

Abstract Several sites located between Road No.28 and Akitsu River in downtown Mashiki were liquefied during the mainshock of 2016 Kumamoto earthquake. According to building damage survey results, only a few buildings damaged areas proximate River, where liquefaction occurred, however, serious occurred neighboring regions. Therefore, effect soil on strong ground motions should be ascertained. M...