摘要
统计分析了1988—1998年期间乌什台和阿合奇台地倾斜记录到的异常图像,发现其与周围250km范围尤其是柯坪块体上发生的4级以上地震有较好的对应关系。异常图像特征以葫芦串、错动、抖动等为主,异常持续时间为1—74天,主要集中在震前3天。最后对异常图像形成的可能机制作了初步的讨论。
We analyzed the ground tilt anomalous maps recorded by Wushi and Aheqi stations from 1988 to 1998, and found the relation is good between it and M4 earthquakes around it 250 km especial in Keping fault. The characteristics of anomalous maps is gourd bunch, dislocation and dithering, etc, the anomalous duration is from 1 day to 74 days, but mainly centralized in 3 days before earthquakes. In the end, we discussed the mechanism of the anomalous maps.
出处
《内陆地震》
2005年第2期136-141,共6页
Inland Earthquake
基金
中国地震局"三结合"课题(新疆9812)部分成果.
关键词
地倾斜异常
中强地震
地震预报
Ground tilt anomaly
Medium-strong earthquakes
Earthquake prediction
