Possible correlation between exogenous parameters and seismicity

Mohamad Huzaimy Jusoh, Farah Adilah Mohd Kasran, Huixin Liu, Kiyohumi Yumoto

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抜粋

Exogenous parameter is basically referred to the external activities that may have been the important factors in modulating the atmosphere, ionosphere and the earth's surface. Due to its significant impacts, there is possibility to link solar activities and seismicity. Associated investigations have been done by previous researchers in order to explore the solar - terrestrial connection; nevertheless, the physical mechanism is still controversial. To comprehend the investigation of this coupling mechanism, we propose another exogenous source to be analyzed which is cosmic ray. As solar activity, cosmic ray also has minimum and maximum phases or called as cosmic ray cycle, but it is anti-correlation between phases of sunspot and cosmic ray cycles. In this brief report, we examine the trend of shallow earthquake occurrence as the caused effect during recent 4 complete solar cycles (SC 20-23) in order to study its possible link to sun spot number (SSN). The earthquakes were categorized into very shallow earthquakes with epicenter depth less than 35 km and deeper earthquakes with epicenter depth between 35-70 km. For very shallow earthquakes, the analysis shows two interesting features. First, its occurrence rate shows a steady increase during the 40 years period of 1964-2005, with average increase rate about 150/year. Second, a distinct increase of the occurrence rate occurs during each solar minimum of SC 21-23. Neither of these features is found in the earthquakes with deeper epicenters, suggesting that the solar influence on seismicity, if exists, is likely to exist only in the case of very shallow earthquakes whose epicenter is in the crust region.

元の言語英語
ホスト出版物のタイトルRAST 2015 - Proceedings of 7th International Conference on Recent Advances in Space Technologies
出版者Institute of Electrical and Electronics Engineers Inc.
ページ525-529
ページ数5
ISBN(電子版)9781467377607
DOI
出版物ステータス出版済み - 8 17 2015
イベント7th International Conference on Recent Advances in Space Technologies, RAST 2015 - Istanbul, トルコ
継続期間: 6 16 20156 19 2015

その他

その他7th International Conference on Recent Advances in Space Technologies, RAST 2015
トルコ
Istanbul
期間6/16/156/19/15

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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  • これを引用

    Jusoh, M. H., Kasran, F. A. M., Liu, H., & Yumoto, K. (2015). Possible correlation between exogenous parameters and seismicity. : RAST 2015 - Proceedings of 7th International Conference on Recent Advances in Space Technologies (pp. 525-529). [7208401] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/RAST.2015.7208401