A destructive earthquake (Mw 6.1) struck Pasaman, West Sumatra, Indonesia, on 25 February 2022, resulting in at least 18 deaths and damage to 1765 buildings. Our relocated foreshock, mainshock, aftershocks their source mechanisms reveal a previously unknown ∼20 km long segment of the Sumatran Fault as result dextral strike-slip motion (strike N132oE dip 72oSW) along what we have called Kajai Fa...

Foreshock events provide valuable insight to predict imminent major earthquakes. However, it is difficult to identify them in real time. In this paper, I propose an algorithm based on deep learning to instantaneously classify a seismic waveform as a foreshock, mainshock or an aftershock event achieving a high accuracy of 99% in classification. As a result, this is by far the most reliable metho...

In recent decades, significant research efforts have been devoted to developing fragility and vulnerability models for mainshock-damaged buildings, i.e., depending on the attained damage state after a mainshock ground motion (state-dependent fragility/vulnerability relationships). Displacement-based peak quantities, such as maximum interstory drift ratio, are widely adopted in analysis define b...

The mainshock (MS) is often accompanied by a number of aftershocks (AS). existence AS may cause the seismic demand to be greater than MS. In order better evaluate impact AS, this paper takes RC columns as research object and performs incremental dynamic analysis (IDA) on actual recorded mainshock-aftershocks (MS-AS). Park–Ang model damage index are used quantify effect MS respectively. fragilit...

Abstract This paper presents a joint analysis of instrumental and macroseismic data regarding the 19 July 2019, Greece M w 5.1 earthquake occurred west Athens. ruptured blind, south-dipping normal fault, 23 km WNW center Athens, while its relocated epicentre lies in close vicinity to one 1999 6.0 earthquake. The maximum intensity 2019 mainshock reached IEMS98 = 7.5. Scarce damage intensities up...

A M S 6.6 earthquake struck Jinghe County in Bortala Mongol Autonomous Prefecture of Xinjiang Uygur Region on August 9, 2017. The occurred near the eastern part Kusongmuxieke Piedmont Fault (KPF) southwest Junggar Basin. Using two pairs coseismic SAR image data from ascending and descending tracks Sentinel-1 (European Space Agency), we processed interferograms to obtain deformation field. We ca...

The M5 Mentone earthquake that occurred on March 26, 2020, was the largest event recorded over last 2 decades in West Texas within Delaware Basin, a U.S. major petroleum-producing area. Also, numerous hydrofracturing and wastewater disposal wells are spread across this region. Within 30 km distance to mainshock, eight class-II injection for industrial target deep porous Ellenburger aquifer at a...

The earthquake (ML5.2) which occurred at Chushan town, Nantou on Nov.11, 2017 resulted many aftershocks around the hypocenter of mainshock. coulomb stress changes (∆CFSs) by mainshock demonstrated most located within portions with ∆CFSs greater than 0.1 bar, revealing may be induced After investigating different depths, results showed positive values under depth 15km were transferred...