The MS 6.9 Menyuan earthquake in Qinghai Province, west China is the largest by far 2022. occurs a tectonically active region, with background b-value of 0.87 within 100 ​km epicenter that we derived from unified catalog produced Earthquake Networks Center since late 2008. Field surveys have revealed surface ruptures extending 22 along strike, maximum ground displacement 2.1 ​m. We construct finite fault model constraints InSAR observations, which showed multiple segments during earthquake....

Abstract The September 2022 Ms 6.8 Luding earthquake broke more than 230 years of seismic calm on the Moxi fault, providing a unique opportunity to understand its seismogenic environment, rupture dynamics, and hazard. Using teleseismic body waves, regional strong‐motion observations, GNSS, InSAR data, we decipher spatiotemporal evolution mainshock. Combining elastic dislocation model with surface creep, find that coseismic slip correlates closely locked patch loading rate 9.7 mm/yr, but...

Summary The Sichuan-Yunnan region is a crucial area for studying the deformation and tectonic evolution of lithosphere within Tibetan Plateau. However, significant controversy exists about spatial distribution low-viscosity zones in its mid-lower crust. Herein, we utilized combination topography, geoid height, surface heat flow, Rayleigh wave phase velocity dispersion curves to ascertain lithospheric temperature, seismic velocity, density structure this region. By correlating inverted...

Abstract Various observation data, including underground fluid, seismicity, and gravity, have been used in earthquake prediction, but the limited understanding of these data has raised doubts about predictability earthquakes. On 20 April 2013, Ms 7.0 Lushan occurred on eastern margin Qinghai–Tibet Plateau, with a significant gravity increase southern region epicenter before earthquake. The medium this gravity-increased area shows locally high conductivity Poisson’s ratio characteristics,...

Abstract Unprecedented levels of seismicity have been seen in southern Sichuan, China, since the large‐scale exploitation shale gas. Fluid and pore pressure transported through hydrological channel are thought as pivotal elements induction earthquakes. Our high‐resolution tomography results reveal two inclined seismic anomalies featured by low V s high p / at different depth range. The deeper anomaly extends 15 km from NE to SE connects well g 048 3 vicinity Ms 4.7 Gongxian earthquake 5.4...

On 8 August 2017, a surface wave magnitude (Ms) 7.0 earthquake occurred at the buried faults extending to north of Huya fault. Based on coseismic deformation field obtained from interferometric synthetic aperture radar (InSAR) data and series finite fault model tests, we propose brand-new two-fault composed main secondary as optimal for Jiuzhaigou earthquake, in which is wide obtuse angle northern end plane. Results show that dislocation distribution dominated by sinistral slip, with...

Abstract Since 2000, eastern Taiwan has experienced 38 Mw≥5.5 earthquakes, leaving three seismic gaps along the Longitudinal Valley fault (LVF). In April 2024, Mw 7.3 Hualien earthquake occurred near LVF. Herein, we first apply comprehensive geodetic data including Interferometric Synthetic Aperture Radar and Global Navigation Satellite System to estimate two potential geometries invert for coseismic slip. Our results suggest that a transpressive WNW-dipping low-angle related Central range...

Abstract The Xianshuihe (XSH) fault on the eastern boundary of Tibetan plateau is one most active faults in world. However, Moxi fault, southernmost segment XSH remained seismically quiescent for over 230 yr, with a large slip rate and high locking degree. Thus, this region considered to be seismic gap capable hosting earthquakes Mw 7.0 or greater. In September 2022, Ms 6.8 Luding earthquake occurred resulting destructive landslide damage, 93 people dead 25 missing. Using regional global...

Abstract The 2022 Ms 6.1 Lushan earthquake occurred in the southern segment of Longmenshan fold-and-thrust belt, Sichuan Province, China, ∼7 km north-northwest 2013 7.0 earthquake. To understand its source characteristics and interplay with event, we evaluate terms focal mechanism, aftershock relocation, rupture process. Results show that it is a purely thrust depth 14 mechanism nodal plane 29°/51°/80°. automatic phase picker-based locus clarifies on blind northeast-trending conjugate fault...

Abstract The Weiyuan shale gas field in the stable southern Sichuan basin, China, has experienced increasing seismicity since systematic hydraulic fracturing (HF) operations 2015. Three Mw≥4.4 shallow earthquakes occurred area between September 2019 and February 2020, yet their seismogenic faults, rupture models, relationship with HF are unknown. In this study, we first obtain high-resolution coseismic deformation fields of these three events then invert slip distribution. result shows that...

Abstract On 8 August 2017, an Ms 7.0 earthquake occurred on a buried fault extending to the north of Huya fault. Based coseismic deformation field obtained from Interferometric Synthetic Aperture Radar (InSAR) data and series finite model tests, we proposed brand new two-fault composed main secondary as optimal for Jiuzhaigou earthquake, in which is at large obtuse angle northern end plane. Results show that slip distribution dominated by sinistral slip, with significant shallow deficit. The...

Hollow nanoparticles have great application potential in the field of nanotechnology, but up to now, few studies targeted on sintering process using hollow Ag particles (HAP). It has been shown that can melt at a lower temperature level than solid particles, so are easier coarsen and particle is worth exploring. In this study, HAP with tunable sizes range 280–910 nm was fabricated. To simulate joint structure high-power semiconductor devices, we selected SiC die metallization as chip side,...

As a major grain-producing region in China, the North China Plain (NCP) faces serious challenges such as water shortage and land subsidence. In late 2014, Central Route of South-to-North Water Diversion Project (SNWD-C) began to provide NCP with resources. However, effectiveness this supply mitigating subsidence remains pivotal yet unassessed aspect. paper, we utilized various geodetic datasets, including Gravity Recovery Climate Experiment (GRACE) GRACE Follow On (GRACE-FO), Global...