据美国地震监测网的说法，这场5.2级的地震于当地时间清晨5：37发生于四川省。
The 5.2-magnitude quake struck at 5:37 a.m. local time in the Sichuan province, according to the U.S. Geological Survey.
在这种情况下，所得到的不同的级数则是因为各监测网使用的略有不同的监测工具，并与他们相对于地震中心的位置不同有关。
In that case, the different assigned magnitudes are a result of the slight differences in the instruments and their locations with respect to the earthquake epicenter.
我国的钻孔应力-应变地震前兆监测网，是全国地震前兆监测台网的一个组成部分。
The seismological networks for borehole stress strain precursor surveilance in China are a part of the national seismological networks for precursor surveilance.
应用推荐