Liangyu Zhu
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View article: Persistent Postseismic Signals: Multigeodetic Insights into the 1920 Haiyuan Earthquake's Legacy
Persistent Postseismic Signals: Multigeodetic Insights into the 1920 Haiyuan Earthquake's Legacy Open
View article: Coseismic deformation and seismogenic structure of the 2024 Hualien Earthquake measured by InSAR and GNSS
Coseismic deformation and seismogenic structure of the 2024 Hualien Earthquake measured by InSAR and GNSS Open
On April 3, 2024, an M7.3 earthquake occurred in the offshore area of Hualien County, Taiwan, China. The seismogenic structure at the epicentral location was highly complex, and studying this earthquake is paramount for understanding regio…
View article: 联合InSAR和GNSS构建青藏高原千米分辨率三维地壳形变场
联合InSAR和GNSS构建青藏高原千米分辨率三维地壳形变场 Open
青藏高原位于印度板块与欧亚板块碰撞的前沿地带，地壳运动十分活跃。受高海拔、高寒气候等因素的限制，以地面观测站为代表的传统大地测量监测较为困难，因此至今青藏高原的高空间分辨率地壳形变场尚未精确测定。InSAR技术不受地面观测条件限制，能够获得大范围、高空间分辨率的地壳形变场，在青藏高原地壳形变监测领域具有不可替代的优势。本文利用2014至2020年的Sentinel-1卫星SAR数据，计算了青藏高原升降轨InSAR形变场，测量精度约为3 mm/a。在此基础上，融合InSAR与…
View article: Lithospheric Rheology and Crustal Deformation Across the Northeastern Tibet and Their Implications for Plateau Growth
Lithospheric Rheology and Crustal Deformation Across the Northeastern Tibet and Their Implications for Plateau Growth Open
Understanding lithospheric rheology is crucial in investigating tectonic evolution of intra‐continental tectonic boundary. Here, we use geodetic observations to infer lithospheric rheology across the northeastern Tibet based on a 2D viscoe…
View article: Study of the Interseismic Deformation and Locking Depth along the Xidatan–Dongdatan Segment of the East Kunlun Fault Zone, Northeast Qinghai–Tibet Plateau, Based on Sentinel-1 Interferometry
Study of the Interseismic Deformation and Locking Depth along the Xidatan–Dongdatan Segment of the East Kunlun Fault Zone, Northeast Qinghai–Tibet Plateau, Based on Sentinel-1 Interferometry Open
The East Kunlun fault zone (EKFZ), located northeast of the Qinghai–Tibet Plateau, has experienced several strong earthquakes of magnitude seven or above since 1900. It is one of the most active fault systems and is characterized by left-l…
View article: Synthetic aperture radar interferometry–based coseismic deformation and slip distribution of the 2022 Menyuan MS6.9 earthquake in Qinghai, China
Synthetic aperture radar interferometry–based coseismic deformation and slip distribution of the 2022 Menyuan MS6.9 earthquake in Qinghai, China Open
On January 8, 2022, a 6.9 magnitude earthquake occurred in Menyuan County, Qinghai Province, with the epicenter located at the intersection of the Tuolaishan Fault and the Lenglongling Fault, which are part of the Qilian–Haiyuan fault zone…
View article: Present-Day Three-Dimensional Deformation across the Ordos Block, China, Derived from InSAR, GPS, and Leveling Observations
Present-Day Three-Dimensional Deformation across the Ordos Block, China, Derived from InSAR, GPS, and Leveling Observations Open
The Ordos Block in China experiences tectonic activity and frequent earthquakes due to compression from the Tibetan Plateau and extension from the North China Block. This has prompted the construction of a high-resolution three-dimensional…
View article: The June 2022 Khost earthquake in southeastern Afghanistan: A complicated shallow slip event revealed with InSAR
The June 2022 Khost earthquake in southeastern Afghanistan: A complicated shallow slip event revealed with InSAR Open
View article: The 8 January 2022, Menyuan Earthquake in Qinghai, China: A Representative Event in the Qilian-Haiyuan Fault Zone Observed Using Sentinel-1 SAR Images
The 8 January 2022, Menyuan Earthquake in Qinghai, China: A Representative Event in the Qilian-Haiyuan Fault Zone Observed Using Sentinel-1 SAR Images Open
On 8 January 2022, a Ms 6.9 earthquake occurred in Menyuan, Qinghai, China. This event provided important geodetic data before and after the earthquake, facilitating the investigation of the slip balance along the seismogenic faults to und…
View article: Fault locking of the Qilian–Haiyuan fault zone before the 2022 Menyuan Ms6.9 earthquake and its seismic hazards in the future
Fault locking of the Qilian–Haiyuan fault zone before the 2022 Menyuan Ms6.9 earthquake and its seismic hazards in the future Open
By using GPS-derived velocities of 2015–2021 and a negative dislocation program, we inverted the locking degree and slip rate deficit in the Qilian–Haiyuan fault zone, and combined with the distribution of small earthquakes in the fault, w…
View article: Current Slip and Strain Rate Distribution Along the Ganzi-Yushu-Xianshuihe Fault System Based on InSAR and GPS Observations
Current Slip and Strain Rate Distribution Along the Ganzi-Yushu-Xianshuihe Fault System Based on InSAR and GPS Observations Open
The Ganzi-Yushu-Xianshuihe fault (GYXSF), a large strike-slip fault located on the east side of the Tibetan Plateau, has seen high seismic activity in recent years. However, despite the earthquake risk posed by this fault, there is a lack …
View article: Present-Day Tectonic Deformation Partitioning Across South Tianshan From Satellite Geodetic Imaging
Present-Day Tectonic Deformation Partitioning Across South Tianshan From Satellite Geodetic Imaging Open
The Tianshan orogenic belt has intense crustal deformation and shortening in the near north-south direction. We processed ascending and descending Sentinel-1A/B 1 synthetic aperture radar (SAR) data to obtain the first line-of-sight deform…
View article: Finite element simulation of stress change for the MS7.4 Madoi earthquake and implications for regional seismic hazards
Finite element simulation of stress change for the MS7.4 Madoi earthquake and implications for regional seismic hazards Open
On May 22, 2021, the MS 7.4 earthquake occurred in Madoi County, Qinghai Province; it was another strong event that occurred within the Bayan Har block after the Dari MS 7.7 earthquake in 1947. An earthquake is bound to cast stress to the …
View article: InSAR-Constrained Interseismic Deformation and Potential Seismogenic Asperities on the Altyn Tagh Fault at 91.5–95°E, Northern Tibetan Plateau
InSAR-Constrained Interseismic Deformation and Potential Seismogenic Asperities on the Altyn Tagh Fault at 91.5–95°E, Northern Tibetan Plateau Open
The present-day kinematic features of the different segments of the Altyn Tagh Fault (ATF) have been well-studied using geodetic data. However, on the eastern segment of the ATF at 91.5–95°E, high spatial resolution deformation has not bee…