Is Huainan an earthquake-prone zone?

But Dobson is serious! !

Huainan belongs to the earthquake zone! !

Because the earth is constantly moving and changing, it gradually accumulates huge energy, causing sudden rupture of rock strata or dislocation of original faults in some fragile areas of the crust. This is an earthquake.

Most earthquakes occur in the earth's crust.

Earthquakes are divided into tectonic earthquakes, volcanic earthquakes, subsidence earthquakes and induced earthquakes.

Tectonic earthquake means that under the action of tectonic movement, when the local stress reaches and exceeds the strength limit of rock stratum, the rock stratum will suddenly deform or even rupture, and the energy will be released at once, causing ground motion. This kind of earthquake is called tectonic earthquake, accounting for more than 90% of the total number of earthquakes.

Volcanic earthquake refers to an earthquake that occurs in the deep underground due to the fracture or collapse of the overlying strata due to the loss of a large amount of magma, the reduction of underground pressure or the lack of time to replenish magma. The number of such earthquakes is small, accounting for only about 7% of the total number of earthquakes.

Collapse earthquake is a local earthquake caused by underground cave or goaf collapse. Collapse earthquakes are all the results of gravity, with small scale and low frequency, accounting for only about 3% of the total number of earthquakes.

Artificial earthquakes and induced earthquakes are earthquakes caused by artificial blasting, mining, military construction and underground nuclear tests. Earthquakes caused by human production activities Some fault activities are called induced earthquakes, mainly including reservoir earthquakes, deep well pumping and water injection induced earthquakes, nuclear tests induced earthquakes, and mining activities and irrigation can also induce earthquakes. Since the storage of Xinfengjiang Reservoir in Guangdong Province in June 1959+00, 337 earthquakes have been recorded by the end of June 1987, among which an earthquake with magnitude of 6. 1 occurred in June/962, resulting in cracks 82 meters long in the concrete dam.

Because the earth is constantly moving and changing, it gradually accumulates huge energy, causing sudden rupture of rock strata or dislocation of original faults in some fragile areas of the crust. This is an earthquake. Most earthquakes occur in the earth's crust. Earthquakes are divided into tectonic earthquakes, volcanic earthquakes, subsidence earthquakes and induced earthquakes.