Space-time model for migration of weak earthquakes along the northern boundary of the Amurian microplate

Trofimenko, S. V.; Быков, В. И.; Merkulova, T. V.

doi:10.1007/s10950-016-9600-x

Cited by 16 publications

(16 citation statements)

References 29 publications

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“…меняется медленно и не является величиной постоянной, землетрясения могут группироваться в кластеры, которые со временем смещаются [44]. Так, данные о сейсмичности Северной Америки, восточной и северо-западной Европы [42] и Северного Китая [41] показывают, что землетрясения мигрируют и между разломами, которые в течение длительных периодов оставались неактивными.…”

Section: вг быков тв меркуловаunclassified

Seismicity Migration and Hidden Faults in the Priamurye Region

Bykov¹,

Merkulova²

2020

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Section: вг быков тв меркуловаunclassified

Seismicity Migration and Hidden Faults in the Priamurye Region

Bykov¹,

Merkulova²

2020

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“…The displacement vector for seismicity in the annual cycles is determined, and the correspondence between its E-W direction and the displacement of the fronts of large earthquakes is established. The elaborated model of seismic and deformation processes is considered, in which subsequent activation of clusters of weak earthquakes (2≤М≤4), tending to extend from the Japanese-Sakhalin island arc to the eastern closure of the Baikal rift zone, is initiated by the displacement of the strain wave front [Trofimenko et al, 2017b].…”

Section: Fig 4 Main Russian Vertical Reference Frame (Mrvrf)mentioning

confidence: 99%

National Report for the IAG of the IUGG 2015–2018

Gerasimenko¹,

Gorshkov²,

Кафтан³

et al. 2019

Geoinformatics Research Papers

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In this National Report are given major results of researches conducted by Russian geodesists in 2015-2018 on the topics of the International Association of Geodesy (IAG) of the International Union of Geodesy and Geophysics (IUGG). This report is prepared by the Section of Geodesy of the National Geophysical Committee of Russia. In the report prepared for the XXVII General Assembly of IUGG (Canada, Montreal, 8-18 July 2019), the results of principal researches in geodesy, geodynamics, gravimetry, in the studies of geodetic reference frame creation and development, Earth's shape and gravity field, Earth's rotation, geodetic theory, its application and some other directions are briefly described. For some objective reasons not all results obtained by Russian scientists on the problems of geodesy are included in the report.

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“…The details of developed clustering techniques and statistical analysis of background seismicity can be found in Trofimenko et al (2015). In the paper by Trofimenko et al (2016a), the statistical validity of the applied method is shown and the correctness of the models is evaluated.…”

Section: Seismic Effects Of Slow Strain Waves At the Northern Edge Ofmentioning

confidence: 99%

Slow strain waves in blocky geological media from GPS and seismological observations on the Amurian plate

Быков

Trofimenko

2016

Nonlin. Processes Geophys.

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Abstract. Based on the statistical analysis of spatiotemporal distribution of earthquake epicenters and perennial geodetic observation series, new evidence is obtained for the existence of slow strain waves in the Earth. The results of our investigation allow us to identify the dynamics of seismicity along the northern boundary of the Amurian plate as a wave process. Migration of epicenters of weak earthquakes (2 ≤ M ≤ 4) is initiated by the east-west propagation of a strain wave front at an average velocity of 1000 km yr −1 . We have found a synchronous quasi-periodic variation of seismicity in equally spaced clusters with spatial periods of 3.5 and 7.26 • comparable with the length of slow strain waves. The geodetic observations at GPS sites in proximity to local active faults show that in a number of cases, the GPS site coordinate seasonal variations exhibit a significant phase shift, whereas the time series of these GPS sites differ significantly from a sinusoid. Based on experimental observation data and the developed model of crustal block movement, we have shown that there is one possible interpretation for this fact that the trajectory of GPS station position disturbance is induced by migration of crustal deformation in the form of slow waves.

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Space-time model for migration of weak earthquakes along the northern boundary of the Amurian microplate

Cited by 16 publications

References 29 publications

Seismicity Migration and Hidden Faults in the Priamurye Region

Seismicity Migration and Hidden Faults in the Priamurye Region

National Report for the IAG of the IUGG 2015–2018

Slow strain waves in blocky geological media from GPS and seismological observations on the Amurian plate

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