[1]CHEN Zhaohui,WANG Tongqing,LIU Jinzhao,et al.Analysis of Gravity Field Change and Index Quantity in Southern Part of the South-North Seismic Belt[J].Journal of Seismological Research,2018,41(03):480-486.
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Analysis of Gravity Field Change and Index Quantity in Southern Part of the South-North Seismic Belt
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
41
Number of periods:
2018 03
Page number:
480-486
Column:
Public date:
2018-08-20
- Title:
- Analysis of Gravity Field Change and Index Quantity in Southern Part of the South-North Seismic Belt
- Keywords:
- -
- CLC:
- P315.725
- DOI:
- -
- Abstract:
- By deeply processing the mobile gravity data of the southern part of the South-North Seismic Belt from 2014 to 2017,this paper makes a preliminary discussion and analysis on the relationship between gravity field change and earthquake preparation in the study area with the gravity field visualization method based on the gravity segment difference and the significant index G and C.These results show that(1)the recent earthquakes with MS4.5+ in the study area always occur near the positive and negative anomalous transition zone and the high gradient zone,which is related to the complex dynamical process of deep matter migration,the crustal movement and the fault activity.(2)The quantity of G and C is useful for quantitative evaluation of the gravity anomaly degree,reflecting the combined effects of seismic activity within the same time period and potential strong earthquakes,which is of great scientific significance for the further determination of potential seismic risk region.
- References:
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- Similar References:
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Last Update:
2018-07-20