吉林汪清7.2级深震前东北地区形变场分布特征

Translated title of the contribution: On the deformation fields in the Northeast China region before the Wangqing Mb 7.2 deep earthquake in Jilin Province

An Fu Niu*, Xing Ke Zhang, Jing Zhang, Fu Wang Gao, Ping Ji

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

On June 29, 2002, an earthquake with magnitude of 7.2 and depth of 593 km occurred in Wangqing County, Jilin Province. This is an important event since Kunlun Mountain earthquake occurred on November 14 of 2001. This paper discussed the possible relation between both areas seismicity and characteristics of ground tilt and short leveling variations in recent years. Finally, the characteristics of deformation fields related to seismicity are proposed: 1 Anomalous steps of ground deformation may be observed 2 ∼ 4 years before the earthquake occurrence. 2 The characteristics of ground tilts near the source in Northeast China region migrated away. 3 Anomaly images of short leveling in North China region showed wave anomaly, which migrated toward Tancheng-Lujiang fault zone.

Original languageChinese
Pages (from-to)76-81
Number of pages6
JournalEarthquake
Volume24
Issue number1
Publication statusPublished - Jan 2004
Externally publishedYes

Keywords

  • Deep earthquake
  • Ground deformation
  • Leveling
  • Northeast China region

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