[1]HU Ya-xuan,WANG Qing-liang,WANG Xiong.Analysis of Activity of Longgang Volcano Based on Vertical Deformation[J].Journal of Seismological Research,2009,32(03):289-294.
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Analysis of Activity of Longgang Volcano Based on Vertical Deformation
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
32
Number of periods:
2009 03
Page number:
289-294
Column:
Public date:
2009-03-23
- Title:
- Analysis of Activity of Longgang Volcano Based on Vertical Deformation
- Keywords:
- Longgang volcano; vertical deformation field; inversion
- CLC:
- P317.4
- DOI:
- -
- Abstract:
- Firstly we analyze the vertical deformation rates of five leveling lines in more than twenty years in Longgang volcano region.The reates at the stations are calculeted relative to the Changchun fiducial position.The large area in the east and the north of the Changbaishan mountain is subsiding but the sites in the Longgang is rising.Then we analyze the vertical rate and the vertical strain in the main swollen region.Both of them show that the rate of the Fusong-Jilin leveling line is the biggest.At last,the source parameters are inversed by using the improved Mogi model.The data is analyzed mainly in the swollen region.The inversion method is L-curve.The location of the source is 42.1°N,126.5°E,that is the same as the result from the deep seimic sounding investigation.The equivalent radius of the pressure source is about 183 m,bigger than Tianchi volcano in Changbaishan Mountain.The depth is about 30 km,which is deeper than Tianchi volcano too.
- References:
- -
- Similar References:
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Last Update:
2009-03-23