[1]ZHAO Jingyang,WU Yanqiang,LIANG Hongbao,et al.Far-Field Coseismic Displacements Associated with the 2011 Tohoku-oki MW9.0 Earthquake,Japan,Observed by Campaign GPS Observation Data[J].Journal of Seismological Research,2018,41(03):451-456.
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Far-Field Coseismic Displacements Associated with the 2011 Tohoku-oki MW9.0 Earthquake,Japan,Observed by Campaign GPS Observation Data
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
41
Number of periods:
2018 03
Page number:
451-456
Column:
Public date:
2018-08-20
- Title:
- Far-Field Coseismic Displacements Associated with the 2011 Tohoku-oki MW9.0 Earthquake,Japan,Observed by Campaign GPS Observation Data
- Keywords:
- campaign GPS observation; constrained calculation; coseismic displacement; the Tohoku-oki MW9.0 earthquake
- CLC:
- P315.725
- DOI:
- -
- Abstract:
- The campaign GPS observations in the northeastern China from 1999 to 2017 are used to derive the far-field coseismic displacements of the 2011 Tohoku-oki MW9.0 earthquake,Japan.The strategies include direct calculation with the coordinate time series,constrained calculation with the interpolated coseismic displacements from continuous GPS observations,constrained calculation with the simulated coseismic displacements from dislocation model and constrained calculation with both the above two external data are compared.Then the best far-field coseismic horizontal displacements as well as the near field coseismic vertical displacements are used to invert the static dislocation model of the earthquake.The results show that when the campaign GPS data are used to inverse the coseismic displacements of small magnitude,using external reliable data as constraint is conducive to getting more satisfactory results.And the maximum far-field coseismic displacements in northeastern China can reach 33 mm and the dominated displacements is eastward.The resultant moment magnitude corresponding to the coseismic dislocation inversion is MW8.77 and the largest dislocation of this earthquake is 21.09 m.
- References:
- -
- Similar References:
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Last Update:
2018-07-20