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ISSN: 1674-9847
CN: 42-1806/P
e-ISSN: 2589-0573

Analysis of the GNSS deformation of the 2025 Xizang Dingri M6.8 earthquake

The study utilized GNSS observation data from 1999 to 2024 to investigate the crustal deformation characteristics near the epicenter of the Dingri earthquake. The results show that the GNSS horizontal...

Post-seismic Coulomb stress simulation and seismic hazard analysis of the 2025 Myanmar MW7.7 earthquake

On March 28, 2025, an MW7.7 earthquake struck Myanmar, with the epicenter located in the central segment of the Qinghai–Xizang–Yunnan–Myanmar–Indonesia η-type structure. This region hosts a series of...

Co-seismic gravity changes of the 2004 Sumatra-Andaman earthquake from different releases of GRACE monthly solutions

The Gravity Recovery and Climate Experiment (GRACE) Level-2 products, i.e., monthly gravity field models expressed in spheric harmonic (SH) coefficients, have been released in several versions since...

New and updated long-periodic terms in harmonic development of the Earth tide-generating potential

We present a new harmonic development of the long-periodic band of the Earth tide-generating potential (TGP). It updates the corresponding part of the previous TGP expansion, KSM03, and includes 38...

The 28 March 2025 MW7.7 Myanmar earthquake revealed by InSAR and POT observations: A supershear event with no shallow slip deficit

On 28 March 2025, a shallow devastating strike-slip earthquake with a moment magnitude (MW) of 7.7 struck Mandalay, the second-largest city in Myanmar, marking the most powerful seismic event in this...

Spatiotemporal dynamics of groundwater storage inferred from MT-InSAR and hydraulic head data in Anyang–Puyang Plain

Groundwater overexploitation in northern Henan Province has led to significant land subsidence and aquifer degradation. This methodologically driven study proposes a physically consistent framework...

Quality assessment of global gravity field models in the Antarctic region based on airborne gravity data

As the largest ice sheet storage area in the world, Antarctica's gravity field characteristics are key data for studying ice sheet mass balance, sea level changes, and polar resource exploration. However,...

Fault model and slip distribution of the 2025 MW6.0 Chiayi earthquake in southern Taiwan, China, constrained by InSAR observations

On January 20, 2025, an MW6.0 earthquake occurred in Chiayi County, southwestern Taiwan, China. In this study, we utilize Sentinel-1 data to investigate the coseismic ground displacement and fault slip...

Seismological study of meta-instability of the Yangbi MS6.4 earthquake in 2021

Meta-instability is an irreversible precursor of earthquakes. To identify the meta-instability precursor of the Yangbi MS6.4 earthquake (99.87°E, 25.67°N) that occurred on May 21, 2021, we selected...

Vertical gravity gradient modeling and its influence on gravity datum transfer

In the past, the free-air gradient −308.6 × 10−8 s−2 was used as the vertical gravity gradient of the measuring point in gravity data processing, which resulted in inaccurate instrument height corrections....

Integrated gravity, GNSS, and seismic analysis for fault mapping in Sulawesi island: Insights into the Palu-Koro Fault

The Palu-Koro Fault is one of the most active left-lateral strike-slip faults in Indonesia. This study integrates gravity data (GGMPlus), GNSS measurements, and seismic analysis to better understand...

Multi-temporal InSAR analysis for assessment of earthquake precursory deformation

Ground deformation is a key parameter in interpreting precursory stress and strain patterns and provides valuable information for seismic studies. Interferometric Synthetic Aperture Radar (InSAR) is...

The Huarpe hidden aseismic ridge and its exhumation and mineralization effects in the central Andes

The subduction of oceanic plate heterogeneities—drives profound tectonic and metallogenic modification of the overriding upper plates. Along the central Chile-Argentinean subduction margin, the collision...

Intraplate strain rate variations associated with reservoir-triggered seismicity: A case study from Koyna, Western India

The Koyna-Warna Seismic Zone (KWSZ) of western India is considered as a classical intraplate site to study reservoir-triggered seismicity (RTS). The area has been seismically active for more than six...

Structure of the Lomas de Olmedo sub-basin (Salta rift) and synorogenic deposits in the Central Andes based on gravity data

Northwestern Argentina in the Andean retroarc zone hosts Paleozoic, Cretaceous–Paleogene rift, and Paleogene-Neogene foreland units, representing the main hydrocarbon potential of the Central Andes....

Seismic barrier for MW >8 earthquakes acting as asperity for MW about 7 at the Atiquipa region (southern Peru) from satellite GOCE data

Mapping and modeling the heterogeneities distributed along the megathrust region in subduction zones is a key factor in understanding the seismic cycle and studying earthquake rupture behavior. Heterogeneities...

Wavelet-based fusion of altimetry-derived and shipborne gravity data around Egypt

This study presents a wavelet-based fusion approach for enhancing the marine gravity field over the Red and Mediterranean Seas around Egypt by integrating altimetry-derived free-air gravity (AFAG) and...

Research on the mode of shipborne strapdown gravimetry based on SINS/GNSS

The measurement mode is one of the main factors affecting the performance of shipborne strapdown gravimetry. However, the applicability of existing gravimetry modes in shipborne applications remains...

Low-cost PPP/visual/IMU fused positioning method based on factor graph optimization under complex urban environments

With the development and application of autonomous driving technology, high-precision positioning and navigation services have played an increasingly important role in complex urban environments. The...

Feasibility study of gravity gradient measurement based on multi-rotor UAV platform

To validate the feasibility of gravity gradient measurements using the ZL11-4C gravimeter mounted on the FC-30 unmanned aerial vehicle (UAV) platform, this study conducted vertical take-off and landing...

On estimating period and quality factor of Chandler wobble

While numerous studies have been dedicated to the determination of Chandler wobble parameters, namely its period TCW and quality factor QCW, most of their results lack self-consistency. We proposed...

Study on the length of day variation by combining Singular Spectrum Analysis and least-squares fitting

It is already known from the 20th century that the angular velocity of the Earth is not fixed but shows some fluctuations. By extension, the length of the day varies over the years. The objective of...

BDS and ultra-high rate GNSS in monitoring coseismic dynamic motions of the 2022 Luding MW6.8 and 2025 Dingri MW7.1 earthquakes in China

High-rate Global Navigation Satellite Systems (hrGNSS) provide clip-free, geodetically referenced displacement time series that are valuable for resolving near-field earthquake dynamics. Here, we analyze...

Enhanced BDS-3/GNSS satellite clock offset prediction: A sliding-window optimized cascaded LSTM+MLP architecture

The performance of real-time satellite clock offset products directly impacts the service quality of high-precision positioning, navigation, and timing (PNT). To address existing issues in current clock...

Role of crustal structure in geodynamic evolution and seismogenesis in the eastern Indo-Gangetic Foreland Basin and Himalayan Collision Zone

The incessant convergence between the Indian and Eurasian plates has significantly altered the crustal thicknesses of the Indian subcontinent since their collision and formed one of the most dynamically...

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