Ionospheric Precursor before a 547 km deep Indonesia Nebe Earthquake on 27 February 2015, Mw=7.0 using Two-Dimensional Principal Component Analysis (2DPCA)
作者: Jyh-Woei Lin
刊名: Asian Journal of Natural & Applied Sciences, 2015, Vol.4 (4)
来源数据库: Leena and Luna International Pvt Limited
关键词: Total Electron Content (TEC)Indonesia Nebe EarthquakeTEC PrecursorTwo-Dimensional Principal Component Analysis (2DPCA)Radon Gas Release
原始语种摘要: In this study, the ionospheric Total Electron Content (TEC) data of 5 days before Indonesia Nebe earthquake occurred at 13:45:05 (UT) on 27 February 2015 ( =7.0) with the depth of 547km and the epicentre of 7.277°S, 122.534°E were examined to detect TEC precursor by using Two-Dimensional Principal Component Analysis (2DPCA) because such TEC precursor could not be found by observation analysis. Results have shown that a TEC precursor was highly localized and increased in intensity during the time period from 05:55 to 06:00 (UT) on 26 February 2015. The duration time of TEC anomaly was at least 5 minutes. Possible reason of the TEC precursor over the epicenter before this earthquake should be radon gas release.
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  • DPCA Data Processing Control Area
  • February 二月
  • Analysis 分析
  • radon 
  • precursor 前驱物质
  • duration 持续时间
  • TEC Technical
  • anomaly 异常
  • epicentre 震中
  • epicenter 震中