Results 171 to 180 of about 598,589 (206)

Helium isotope anomaly in groundwater prior to the 2024 Noto Peninsula earthquake. [PDF]

Nat Commun
Kagoshima T, Sano Y, Takahata N, Kawamoto Y, Shibata T, Li Y, Morishita T, Hiramatsu Y, Nakajima J.   +8 more
europepmc   +1 more source

Electromagnetic imaging reveals insufficient fluids to explain shallow megathrust creep at the Shumagin Gap. [PDF]

Nat Commun
Li Y, Naif S, Key K, Constable S, Evans RL, Shillington DJ, Bécel A, Cordell D.   +7 more
europepmc   +1 more source

Deep intra-slab rupture and mechanism transition of the 2024 M_w 7.4 Calama earthquake. [PDF]

Nat Commun
Jia Z, Mao W, Flores MC, Barra S, Ruiz S, Potin B, Becker TW, Moreno M, Baez JC, Ceroni D, Cabrera L.   +10 more
europepmc   +1 more source

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Estimation of Coseismic Deformation With Multitemporal Radar Interferometry

IEEE Geoscience and Remote Sensing Letters, 2022
Differential interferometric synthetic aperture radar (DInSAR) has been widely used as one of the most important technologies for determining coseismic deformation. However, DInSAR processing is often perturbed by errors including atmospheric effects and those in topographic models, SAR satellite orbits, and phase unwrapping operation.
Lei Zhang 0022, Jun Hu 0005, Xiaoli Ding 0001, Yangmao Wen, Hongyu Liang   +4 more
openaire   +1 more source

Defining the Coseismic Phase of the Crustal Deformation Cycle With Seismogeodesy

Journal of Geophysical Research: Solid Earth, 2021
AbstractEarth's crustal deformation cycle is traditionally divided into coseismic, postseismic, and interseismic phases upon which transient motions from various sources may be superimposed. Here we present a new seismogeodetic methodology to define and identify the transition from the coseismic to the early postseismic phase.
Dorian Golriz, Yehuda Bock, Xiaohua Xu
openaire   +1 more source

Coseismic deformation induced by the Sumatra earthquake

Journal of Geodynamics, 2006
Abstract The giant Sumatra-Andaman earthquake of December 26, 2004 caused permanent deformations effects in a region of previously never observed extension. The GPS data from the worldwide network of permanent IGS sites show significant coseismic displacements in an area exceeding 107 km2, reaching most of South-East Asia, besides Indonesia and India.
BOSCHI, ENZO, Casarotti E., Devoti R., Melini A., Piersanti G., Pietrantonio G., Riguzzi F.   +6 more
openaire   +2 more sources

Limitations of earthquake coseismic deformation measurements using InSAR

International Journal of Remote Sensing
Interferometric Synthetic Aperture Radar (InSAR) is commonly used to measure earthquake coseismic deformation. However, InSAR cannot be used to effectively measure all types of coseismic deformation, and it is influenced by numerous factors. Currently, for the limitations of InSAR coseismic deformation measurement, only empirical judgements are used to
Qiming Zeng, Cunren Liang, Shangzong Lu
exaly   +2 more sources

Contribution of coseismic deformations on the current expansion of the Earth

Journal of Geodynamics, 2016
Abstract In this paper, the effects of earthquake source parameters (especially the rake angle and the dip angle) on changes in the overall volume and mean radius of the Earth are discussed, and it is herein concluded that dip-slip earthquakes produce the maximum changes in the Earth’s mean radius.
Changyi Xu, Dongping Wei, Wenke Sun
openaire   +1 more source

Exploring the relationship between InSAR coseismic deformation and earthquake-damaged buildings

Remote Sensing of Environment, 2021
Abstract Strong ground vibration triggered by seismic waves is one of the most significant factors that causes building damage during a seismic event. The interferometric synthetic aperture radar (InSAR) technique can efficiently and quickly provide seismic deformation information.
Jingfa Zhang
exaly   +2 more sources

Spherical versus flat models of coseismic and postseismic deformations

Journal of Geophysical Research: Solid Earth, 1999
We perform an exhaustive study of coseismic and postseismic surface deformations induced by shear dislocations using flat and spherical Earth models. Our aim is to examine the effects of the spherical geometry, the vertical layering, and the self‐gravitation on surface displacement field.
C. Nostro, A. Piersanti, A. Antonioli, SPADA, GIORGIO   +3 more
openaire   +1 more source