Abnormal infrasound signals before 92M≧7.0 worldwide earthquakes during 2002-2008

Yaqin Xia, Jann Yenq Tiger Liu, Xiaoyan Cui, Junzhi Li, Weisheng Chen, Chengyan Liu

研究成果: 雜誌貢獻期刊論文同行評審

31 引文 斯高帕斯(Scopus)

摘要

In this paper, 240 abnormal infrasound signals observed at Beijing (39.87°N, 116.48°E) and 92 M≧ 7.0 worldwide earthquakes during 2002-2008 are investigated. It is found that about 85% the earthquakes are preceded the signals by 1-30 days and the greater M≧ 7.6 earthquakes are most likely leaded by 1-10 days. The maximum amplitude of the abnormal infrasound signal generally exceeds 8. Pa in sound pressure. The statistical analyses further indicate that the amplitude of the abnormal signals is proportional to the magnitude the associated forthcoming earthquake but inversely to the distance from that earthquake to the observation station.

原文???core.languages.en_GB???
頁(從 - 到)434-441
頁數8
期刊Journal of Asian Earth Sciences
41
發行號4-5
DOIs
出版狀態已出版 - 5 6月 2011

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