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南北地震带等地区强地震在华北中南部的“响应地震”研究
The research on North China “induced earthquake” of main shocks in NorthSouth Seismic Zone, Taiwan Province in China and Japan
- DOI:
- 作者:
- 张贵霞1)赵霞1)冯志生1)吴晶1)张贵仁2)
- 作者单位:
- 1) 中国南京 210014 江苏省地震局 2) 中国内蒙古 012000 呼和浩特铁路局集宁工务段
- 关键词:
- 响应地震； A—F—B链式地震；汶川地震；滨海地震；统计研究
induced earthquake, A—F—B chain earthquake， Wenchuan earthquake， Binhai earthquake, statistical study
- 摘要:
- 2008年5月12日T14:28汶川发生8.0级大地震，2008年5月13日T5:00江苏省发生滨海ML 3.8地震。滨海地震是否是由汶川地震触发的、可指示滨海附近中短期内将发生中强地震的“诱发前震”？基于此，本文进行了如下研究：①统计南北地震带及中国台湾7.3级以上、日本7.5级以上大地震；②统计①中大震发生后3天时间(72 h)内,华北中南部地区发生的ML 3以上地震；③统计大震发生后1年内在ML 3地震附近地区（距震中350 km以内）发生的5级以上地震；④对上述3组地震是否存在链式关系进行统计研究，即研究特定条件下的A—F—B链式地震现象在华北中南部的预报效果。研究结果表明：根据目前所拥有的统计资料，无法确定2008年5月13日滨海ML 3.8地震是由汶川8级地震诱发的“前兆地震”。
After the 5.12 Wenchuan MS 8.0 earthquake, an earthquake ML 3.8 occurred at Binhai area of Jiangsu Province in 13 May 2008. It is noted whether the Binhai earthquake was induced by the Wenchuan earthquake, and whether it is a “induced foreshock” which may imply the occurrence of moderatestrong earthquake in the moderate or short period nearby the Binhai area. In order to enclose the two problems, this paper will discuss the next subjects: ① to count great shocks occurred in NorthSouth Seismic Zone, Taiwan Province and Japan with MS≥7.3, MS≥7.3 and MS≥7.5, respectively; ② to count earthquakes ML≥3.0 occurred in North China region within 3 days after the earthquakes mentioned in ①; ③ to count earthquakes MS≥5.0 occurring in 350 km around the epicenter of the earthquakes ML≥3.0 mentioned in ② within a year after the great shocks mentioned in ①; ④ to analyze the chain relations among the above three group earthquakes, that is, the predicting effect of the North China area based on A—F—B chain earthquake method in a particular condition. It is concluded that the limited and insufficient counts can not ensure the Binhai earthquake is a “precursory earthquake” induced by the Wenchuan earthquake.
