The Yingkou M4. 3 and M4. 1 earthquakes in Liaoning Province occurred on February 2，2012． Before the earthquake，the water level of Huanghua well in Hebei Province with the epicenter distance of 468km had a significant short-term decreasing anomaly． The abnormal process and Yingkou earthquake sequence of smaller magnitude make a complete comparison． The paper analyzes the anomaly phenomenon in terms of tectonic structure，dynamics environment and focal mechanism． The result shows that there is a certain correlation between tectonic activity and the anomaly，which can be taken as a significant short-term anomaly in far-field．