An earthquake of magnitude 3.0 occurred in Xiahe County, Gansu Province. What are the main factors that caused the earthquake?

There are many reasons for the earthquake in this place. After analysis, it is considered that the earthquake may be caused by structural factors. It may also be a collapse earthquake, or a meteorite falling into a reservoir to store water. Of course, some people speculate that this is probably related to human operation. In short, various reasons may occur, and preventive measures need to be taken.

I. Tectonic earthquake

This is probably caused by a tectonic earthquake. Among many earthquakes, tectonic earthquakes are relatively destructive, and there are also many earthquakes in this world. According to global analysis, the probability of tectonic earthquakes in the world is about 90%. When this kind of earthquake occurs, it is large and small, and the scope is not particularly large, so it is estimated that the harm is not very serious.

Second, the collapse earthquake

The earthquake may be caused by subsidence. For example, subsidence between the earth's surfaces may lead to earthquakes. You know, the earth's surface is very solid, so the number of such earthquakes is generally less. According to global earthquake analysis, it is only about 3%. In addition to this reason, it may also be external factors, such as falling meteorites or storing water in reservoirs. This may lead to an earthquake. In most cases, such earthquakes only occur in certain areas.

Third, it is related to human operation.

It may also be related to human operation, such as underground nuclear explosion or industrial blasting, which may cause earthquakes, which are currently called artificial earthquakes. In most cases, it is caused by underground activities, because human activities sometimes effectively increase the pressure on the earth's crust, which will lead to earthquakes for these reasons, and even when earthquakes occur, they will sometimes be more serious. The probability of such earthquakes is relatively high, and they may occur in different parts of the country.