最近的地震活动异常吗？
该破裂段上现代地震活动异常平静，但发现了明显的蠕滑错开形迹。
The modern seismicity on the segment is very quiet, but some obvious creeping slip and dislocation have been found.
通过这种方法，研究者们就可以了解地震活动的异常现象。
By so doing, researchers attempt to identify "gaps" or anomalies, in the pattern of seismic activity. Numerous types of instruments and methods are used for earthquake prediction.
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