地震地磁观测与研究2012,Vol.33Issue(z1):54-59,6.DOI:10.3969/j.issn.1003-3246.2012.增刊1.010
山东地区地磁加卸载响应比方法的应用
The application on digital geomagnetic loading and unloading response ratio in Shandong Province
摘要
Abstract
The relation between high anomalies of Z component of geomagnetism atdigital seismologi-cal stations and the earthquake of ML≥4. 0 in Shandong Province and its neighbouring area from 2008 to 2011 is analyzed with the method of loading-unloading response ratio, and concluded the quantified index of the P(Z) abnormities in Shandong Province. The result shows: during the three years,fifteen anomalies coincided with the standard at Shandong geomagnetic stations had been obtained, twelve of which respond to the ML≥4. 0 earthquakes,four predictions were missed, two predictions were false, response ration is 80% ; because of the observation and earthquake examples are limited, the parameters have no obvious sign by using the P(Z) value to judge the time、ocate and strong before moderate earthquake in Shandong Province, so need to be combined with other observation methods to get better prediction effect.关键词
山东地区/加卸载响应比/地磁异常/日变幅/阈值Key words
Shandong area/ loading-unloading response ratio/ geomagnetic anomaly/ daily amplitude引用本文复制引用
李霞,陈传华,董晓娜,李希亮,吴丹桐..山东地区地磁加卸载响应比方法的应用[J].地震地磁观测与研究,2012,33(z1):54-59,6.基金项目
山东省自然科学基金青年项目(2R2012DQ009),山东省地震局重点基金项目(JJ1207Y) (2R2012DQ009)