长江口以东海域MS6.1地震前的地倾斜异常

GROUND TILT ANOMALY EVOLUTIONARY CHARACTER BEFORE A MS6.1 EARTHQUAKE IN SEA ON THE EAST OF CHANGJIANG RIVER MOUTH

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摘要１９９６年１１月９日长江口以东海域发生ＭＳ６．１地震，震前距震中２９０ｋｍ的湖州地倾斜台观测到中期异常和短临异常，距震中２４０ｋｍ的宁波地倾斜台也观测到短临异常．这里简单介绍了地倾斜异常的演化过程以及地震三要素的预测．震前我们进行了中短期预报，取得较好效果，但没有提交短临预报意见，这主要是由于短临异常出现较晚和台站资料报送不及时所致．  MS6.1 earthquake occurred in sea on the east of Changjing River mouth on Feb.9,1996.Tiltmeter at Huzhou station 290 km from the epifocus recorded medium and shortterm anomalies,and that at Ningbo station 240 km from the epifocus recorded shortterm anomalies. This paper gives a description of anomaly evolutionary process and prediction of three factors.

作者钟羽云余加虹

机构地区浙江省地震局

出处《西北地震学报》 CSCD 1998年第2期788-89,共1页 Northwestern Seismological Journal

关键词地倾斜异常地震预报长江口地震前兆 Ground tilt anomaly, Earthquake prediction, Changjiang River mouth

分类号 P315.7 [天文地球—地震学]