Related Experiment Video
Updated: Aug 13, 2025

Data Processing Methods for 3D Seismic Imaging of Subsurface Volcanoes: Applications to the Tarim Flood Basalt
Published on: August 7, 2017
Transient deformation during the Milashan Tunnel construction in northern Sangri-Cuona Rift, southern Tibet, China
Yunfeng Tian1, Jing Liu-Zeng2, Yi Luo1
1Key Laboratory of Crustal Dynamics, Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China.
Abstract:
Using 3-year Sentinel-1 C-band synthetic aperture radar (SAR) data, we observed prominent ground subsidence around the construction site of the Milashan Tunnel, which is on top of the northern Sangri-Cuona Rift (SCR) in southern Tibet. The most deformed area extends ∼7 km in the north-south direction and ∼6 km in the east-west direction, with a peak subsidence rate of over 10 mm/a in the line of sight direction of both the descending and ascending satellites. Aside from the long-term ground subsidence arising directly from underground water outflow and rock excavation, a regional aseismic fault slip episode is also evident. The aseismic slip event began in May 2016 and ended in July 2016. The surface aseismic displacements can be explained by normal faulting with mainly down-dip movement and a modest right-lateral strike-slip component on a nearly north-south trending fault. The aseismic deformation triggered by the Milashan Tunnel construction demonstrates the sensitive response of crustal-scale tectonics to human activity, which poses high seismic hazards for the heavily populated region.
More Related Videos
06:55Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
Published on: August 5, 2016
14:14Quantification of Strain in a Porcine Model of Skin Expansion Using Multi-View Stereo and Isogeometric Kinematics
Published on: April 16, 2017
Related Concept Videos
01:22Earthquakes at Transform Plate Boundaries
Temperature Dependent Deformation
01:23Cenozoic Plate Tectonics
01:24Transform Plate Boundaries
01:23Tectonic Plate Motions
Deformations in a Transverse Cross Section
As the material stretches, it expands or contracts in orthogonal directions to the load. This phenomenon varies...