Traditional Culture Encyclopedia - Weather forecast - Why have there been more than three major earthquakes of magnitude 7 or above in Shanxi?
Why have there been more than three major earthquakes of magnitude 7 or above in Shanxi?
From the structural composition, Shanxi seismic belt is mainly composed of a series of fault basins, such as Datong Basin, Taiyuan Basin, Yuncheng Basin, Linfen Basin and Ding Xin Basin. The distribution of seismic belts in China is mainly concentrated in North China, Southwest China, Southeast China, Northwest China and Taiwan Province Province. Only after the 20th century, there have been about 800 earthquakes of magnitude 6 or above in these dozens of earthquake zones.
Extended data
The activity of Shanxi seismic belt needs to be combined with the characteristics of North China seismic belt. In the past 600 years, North China has experienced two relatively active earthquake periods, namely 148 1 to 1730, which lasted for 250 years, and 1668 to 1690, which lasted for 27 years.
It is true that there was a major earthquake in Shanxi during the first period of active earthquakes in North China, but there was no earthquake of magnitude 6 or above in the following decades. Although the Shanxi seismic belt may be in the late period of the second seismic activity, from the background, it is unlikely that there will be a major earthquake in Shanxi in recent years, and the land acquisition is at a low level of seismic activity.
Baidu Encyclopedia-Shanxi Earthquake Belt
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