印度尼西亚M_w9.0地震序列与增温异常和天体引潮力的相关关系研究

Relationship between the Indonesia Mw 9.0 Earthquake Sequence and the Temperature Increasing Anomaly with Astro-tidal-triggering

摘要:

初步分析了2004年印尼苏门答腊岛西海岸Mw9.0大地震的地质构造环境,回顾性研究了震前NCEP增温异常和天体引潮力附加构造应力变化。结果表明:主震临震期间NCEP全球分析温度资料(1 000 hPa)沿岛弧地震构造带具有明显增温异常和清晰的初始增温→加强→高峰→衰减→发震的时空演变规律;地震序列活动与增温异常起伏变化对应良好;主震和强余震皆发生在发震断裂带上的天体引潮力附加应力绝对值最大时段。此典型大震再次说明:NCEP温度资料与天体引潮力结合是地震短临预测的一个有希望的新思路。

Abstract:

The geological structure environment of Indonesia Mw 9.0 earthquake on December 26, 2004, locate at west coast of northern Sumatra, is preliminary analyzed, and the changes of the NCEP data and the additive tectonic stress from astro-tidal-triggering are retrospeutively researched. The result shows an evident temperature abnormal increase and spatial - time evolvement rule of the original temperature rise →enhancing rise→pinnacle rising→attenuation, calmness→earthquake occurrence. Both main earthquake and strong aftershocks occurred at the time that the astro-tidal-triggering reach the absolute value apex. This special earthquake proved that a new thinking to utilize the NCEP data and the astro-tidal-triggering for short-term and impending earthquake prediction is feasible.