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CAP方法反演2016年唐山ML4.3地震震源机制解
唐山地震 CAP方法 震源机制解 余震
2019/1/4
利用河北台网及临近区域台网的地震波形资料，采用CAP方法反演了2016年9月10日河北唐山ML4.3地震的震源机制解和震源深度并将反演结果作为已知输入，利用F-K方法计算理论地震波形，与观测记录进行对比，以验证结果的可靠性。结果显示，此次唐山地震为右旋-正倾断层，矩震级为4.4，最佳双力偶解为节面I：走向238.0°，倾角44.0°，滑动角-143.0°；节面Ⅱ：走向119.5°，倾角65.3°，...
The temporal and spatial variations of low frequency geomagnetic pulsations at polar cusp and cap latitudes
Geomagnetic pulsations Antartica
2015/10/8
Geomagnetic field measurements at two Antarctic stations are compared during two weeks in the local summer (January 1-15, 1992). Low frequency (0.6-6 mHz) pulsations are observed at each station near ...
Low frequency geomagnetic field fluctuations at cap and low latitude during October 29-31,2003
magnetospheric ULF waves sun-earth interaction polar cap
2015/9/2
On October-November 2003 complex interplanetary structures, originated by a series of solar eruptions, hit the Earth, triggering violent Sun-Earth connection events. In this paper we analyze the low f...
利用区域波形数据使用CAP方法反演中强地震的震源机制正逐渐得到广泛应用.本文以胶东半岛近期发生的两次显著中等地震为例,讨论了使用CAP方法反演震源机制时的误差估计,展示了反演结果的不确定性分析过程.2013年11月23日和2014年1月7日在山东莱州和乳山分别发生了M4.6和M4.3级中等地震,两次事件均造成了较大影响.我们基于CAP方法,使用自助抽样(bootstrap)技术多次重复反演过程,得...
Origin of giant wave ripples in snowball Earth cap carbonate
Origin of giant wave ripples snowball Earth cap carbonate
2014/4/8
The most extreme climate transitions in Earth history are recorded by the juxtaposition of Neoproterozoic glacial deposits with overlying cap carbonate beds. Some of the most remarkable sedimentary st...