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EARTHQUAKE ›› 2008, Vol. 28 ›› Issue (3): 14-22.

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Ionospheric electromagnetic disturbance before Gaize earthquake with MS6.9, Tibet

ZHANG Xue-min, LIU Jing, QIAN Jia-dong, SHEN Xu-hui, CAI Jin-an, OUYANG Xin-yan, ZHAO Shu-fan   

  1. Institute of Earthquake Science, CEA, Beijing 100036
  • Received:2008-02-13 Revised:2008-03-05 Online:2008-07-31 Published:2021-10-29

Abstract: On Jan.9, 2008, an MS6.9 earthquake of took place in Gaize, Tibet.2 days ago, anomalies of Ti and ULF electric field were recorded when DEMETER satellite of France flew above this epicentral area. In this paper, by means of comparing and processing the data of many orbits during 10 days, two effective methods were provided for distinguishing and determining spatial seismic anomalies. At the meantime, we accumulated the earthquake events with spatial seismic electromagnetic precursors and the experiences in distincting the spatial anomalous signals.

Key words: DEMETER, Ion temperature, ULF electric field, Disturbance

CLC Number: