Determination of the Amurian plate motion

Author(s):  
Dongping Wei ◽  
Tetsuzo Seno
Keyword(s):  
Geology ◽  
1999 ◽  
Vol 27 (4) ◽  
pp. 299 ◽  
Author(s):  
Kyle Antonelis ◽  
Daniel J. Johnson ◽  
M. Meghan Miller ◽  
Randy Palmer

Author(s):  
A. H. Kamaludin ◽  
W. A. Wan Aris ◽  
T. A. Musa ◽  
A. H. Omar ◽  
A. Z. Sha’ameri

Abstract. Global Positioning System (GPS) technique has been extensively implemented in determination of crustal deformation globally. With the ability of providing solution up to milimeter (mm) level, this technique has proven to provide a precise estimate of site velocity that represents the actual motion of tectonic plate over a period. Therefore, this study aims to evaluate the site velocity estimation from GPS-derived daily position of station, respective to the global plate motion model and predicted site velocity via Least-Squares Collocation (LSC) method within the tectonically active region of Sundaland. The findings have indicated that stations with precise velocity estimates were consistent with global plate model and predicted velocity, with velocity residuals of 5 mm – 10 mm. However, stations that were severely impacted by continuous earthquake events such as in Sumatra were believed to be induced by the impact with consistently large velocity residuals up to 37 mm. Following the outcomes, this study has provided an insight on the post-seismic decay period plate motion which are induced by continuous tectonic activities respective to modelled plate motion.


Tectonics ◽  
2001 ◽  
Vol 20 (2) ◽  
pp. 161-176 ◽  
Author(s):  
M. Meghan Miller ◽  
Daniel J. Johnson ◽  
Charles M. Rubin ◽  
Herb Dragert ◽  
Kelin Wang ◽  
...  

2020 ◽  
Vol 43 (1) ◽  
pp. 1-12
Author(s):  
Nguyen Ngoc Lau ◽  
Richard Coleman ◽  
Ha Minh Hoa

Determining the speed of tectonic plate displacement helps us to better understand tectonic activities of the area, and is a prerequisite to help forecast earthquakes. The determination of tectonic plate displacement by GNSS technology in Vietnam has been conducted since the 2000s, mainly using the relative positioning technique. The increasing accuracy of precise point positioning technique, and the number of CORS in Vietnam, will facilitate the accurate determination of tectonic velocities. Based on the GNSS data of some CORSs in Vietnam from 2016-2018, we have determined accurately their three-dimensional coordinates using a precise point positioning technique. After modeling periodic variations on the time series, we calculated the tectonic movement rate of 7 Vietnamese stations and 3 other stations in the region. Through analysis and comparison with other geology/plate motion models and GPS results, we conclude that this result is reliable. The velocity of tectonic motion in the North, East and Up components of Ha Noi, Da Nang and Ho Chi Minh City are respectively (-13.1, +32.8, -1.3), (-9.9, +31.0, +2.6) and (-10.3, +26.9, +2.7)  mm/year.


2020 ◽  
Vol 14 (2) ◽  
pp. 121-131 ◽  
Author(s):  
Marcin Jagoda ◽  
Miłosława Rutkowska ◽  
Czesław Suchocki ◽  
Jacek Katzer

AbstractOn the base of International Terrestrial Reference Frame 2008 (ITRF2008) a new global plate model of station positions and velocities with accuracy 1–3 mm and 1 mm per year respectively was established. Next, this model was used in our paper for plate motion parameters estimation for the major plates as Eurasian, North American, Pacific and small plates as Australian, African and Antarctic on the base of the observation campaigns for three techniques: Satellite Laser Ranging (SLR), Doppler Orbitography by Radiopositioning Integrated on Satellite system (DORIS) and Very Long Baseline Interferometry (VLBI), each technique was analyzed separately. Investigation for GNSS technique is scheduled to take place in the future. The plate motion parameters were adjusted using least squares method and sequential solution. In the first stage, the plate motion parameters were determined for two selected stations and next stations were added until stability of the solution was observed. Final results of our solution were compared with the APKIM 2005 IGN model by H. Drewes. Agreement of solutions is order 2 degrees or better.


1974 ◽  
Vol 61 ◽  
pp. 145-145
Author(s):  
John L. Fanselow ◽  
J. G. Williams

The use of radio interferometric techniques to monitor geophysical phenomena such as UTI-UTC variations, polar motion, and tectonic plate motion requires that there be available a fairly uniform distribution of extragalactic radio sources whose relative positions are known to better than 0″.01. These sources must also have very small proper motion, and not be subject to asymmetric changes in radio structure or to very large variations in intensity. In addition, to facilitate tying this frame of reference to the optical star frames, it is desirable that many of these radio objects have optical counterparts. This paper describes our progress in obtaining such a frame and sets forth our desiderata for further work by radio and optical astronomers.


1999 ◽  
Vol 104 (B12) ◽  
pp. 29147-29155 ◽  
Author(s):  
Kosuke Heki ◽  
Shin'ichi Miyazaki ◽  
Hiroaki Takahashi ◽  
Minoru Kasahara ◽  
Fumiaki Kimata ◽  
...  

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